1210101 has 8 divisors (see below), whose sum is σ = 1619904. Its totient is φ = 803520.

The previous prime is 1210093. The next prime is 1210103. The reversal of 1210101 is 1010121.

1210101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1210101 - 2³ = 1210093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 1210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (202488).

2^1210101 is an apocalyptic number.

It is an amenable number.

1210101 is a deficient number, since it is larger than the sum of its proper divisors (409803).

1210101 is a wasteful number, since it uses less digits than its factorization.

1210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1210101 is about 1100.0459081329. The cubic root of 1210101 is about 106.5631884930.

Adding to 1210101 its reverse (1010121), we get a palindrome (2220222).

Multiplying 1210101 by its reverse (1010121), we get a palindrome (1222348432221).

The spelling of 1210101 in words is "one million, two hundred ten thousand, one hundred one".