1021111002102 has 32 divisors (see below), whose sum is σ = 2078373790080. Its totient is φ = 334390856960.

The previous prime is 1021111002017. The next prime is 1021111002127. The reversal of 1021111002102 is 2012001111201.

It is a super-2 number, since 2×1021111002102² (a number of 25 digits) 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 15 ways as a sum of consecutive naturals, for example, 5638299 + ... + 5816582.

It is an arithmetic number, because the mean of its divisors is an integer number (64949180940).

Almost surely, 2^{1021111002102} is an apocalyptic number.

1021111002102 is an abundant number, since it is smaller than the sum of its proper divisors (1057262787978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021111002102 is a wasteful number, since it uses less digits than its factorization.

1021111002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455148.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021111002102 its reverse (2012001111201), we get a palindrome (3033112113303).

The spelling of 1021111002102 in words is "one trillion, twenty-one billion, one hundred eleven million, two thousand, one hundred two".