1022121202 has 8 divisors (see below), whose sum is σ = 1538638812. Its totient is φ = 509241600.

The previous prime is 1022121167. The next prime is 1022121203. The reversal of 1022121202 is 2021212201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1019461041 + 2660161 = 31929^2 + 1631^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1022121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908799 + ... + 909922.

Almost surely, 2^1022121202 is an apocalyptic number.

1022121202 is a deficient number, since it is larger than the sum of its proper divisors (516517610).

1022121202 is a wasteful number, since it uses less digits than its factorization.

1022121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819004.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022121202 is about 31970.6303034519. The cubic root of 1022121202 is about 1007.3200205569.

Adding to 1022121202 its reverse (2021212201), we get a palindrome (3043333403).

Subtracting 1022121202 from its reverse (2021212201), we obtain a palindrome (999090999).

The spelling of 1022121202 in words is "one billion, twenty-two million, one hundred twenty-one thousand, two hundred two".