1022112101 has 4 divisors (see below), whose sum is σ = 1022678304. Its totient is φ = 1021545900.

The previous prime is 1022112061. The next prime is 1022112103. The reversal of 1022112101 is 1012112201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1012112201 = 15373 ⋅65837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022112101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022112103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280385 + ... + 284006.

It is an arithmetic number, because the mean of its divisors is an integer number (255669576).

Almost surely, 2^1022112101 is an apocalyptic number.

It is an amenable number.

1022112101 is a deficient number, since it is larger than the sum of its proper divisors (566203).

1022112101 is an equidigital number, since it uses as much as digits as its factorization.

1022112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566202.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1022112101 is about 31970.4879693758. The cubic root of 1022112101 is about 1007.3170308114.

Adding to 1022112101 its reverse (1012112201), we get a palindrome (2034224302).

It can be divided in two parts, 10221 and 12101, that added together give a palindrome (22322).

The spelling of 1022112101 in words is "one billion, twenty-two million, one hundred twelve thousand, one hundred one".