1021002122 has 24 divisors (see below), whose sum is σ = 1784528640. Its totient is φ = 436839480.

The previous prime is 1021002113. The next prime is 1021002179. The reversal of 1021002122 is 2212001201.

It is a happy number.

1021002122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52247 + ... + 69077.

It is an arithmetic number, because the mean of its divisors is an integer number (74355360).

Almost surely, 2^1021002122 is an apocalyptic number.

1021002122 is a deficient number, since it is larger than the sum of its proper divisors (763526518).

1021002122 is a wasteful number, since it uses less digits than its factorization.

1021002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17466 (or 17459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1021002122 is about 31953.1238222494. The cubic root of 1021002122 is about 1006.9522613849.

Adding to 1021002122 its reverse (2212001201), we get a palindrome (3233003323).

The spelling of 1021002122 in words is "one billion, twenty-one million, two thousand, one hundred twenty-two".