1021102252 has 24 divisors (see below), whose sum is σ = 1840180496. Its totient is φ = 495488448.

The previous prime is 1021102193. The next prime is 1021102259. The reversal of 1021102252 is 2522011201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021102259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8098 + ... + 45910.

Almost surely, 2^1021102252 is an apocalyptic number.

It is an amenable number.

1021102252 is a deficient number, since it is larger than the sum of its proper divisors (819078244).

1021102252 is a wasteful number, since it uses less digits than its factorization.

1021102252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38017 (or 38015 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1021102252 is about 31954.6906103001. The cubic root of 1021102252 is about 1006.9851776841.

Adding to 1021102252 its reverse (2522011201), we get a palindrome (3543113453).

The spelling of 1021102252 in words is "one billion, twenty-one million, one hundred two thousand, two hundred fifty-two".