1021211102 has 16 divisors (see below), whose sum is σ = 1564511760. Its totient is φ = 499754112.

The previous prime is 1021211033. The next prime is 1021211129. The reversal of 1021211102 is 2011121201.

It is a super-2 number, since 2×1021211102² = 2085744229696108808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32918 + ... + 55910.

It is an arithmetic number, because the mean of its divisors is an integer number (97781985).

Almost surely, 2^1021211102 is an apocalyptic number.

1021211102 is a deficient number, since it is larger than the sum of its proper divisors (543300658).

1021211102 is a wasteful number, since it uses less digits than its factorization.

1021211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23467.

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

The square root of 1021211102 is about 31956.3937577443. The cubic root of 1021211102 is about 1007.0209581171.

Adding to 1021211102 its reverse (2011121201), we get a palindrome (3032332303).

The spelling of 1021211102 in words is "one billion, twenty-one million, two hundred eleven thousand, one hundred two".