1021102111202 has 8 divisors (see below), whose sum is σ = 1539589194156. Its totient is φ = 507905713152.

The previous prime is 1021102111153. The next prime is 1021102111213. The reversal of 1021102111202 is 2021112011201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020906139201 + 195972001 = 1010399^2 + 13999^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322670743 + ... + 1322671514.

Almost surely, 2^{1021102111202} is an apocalyptic number.

1021102111202 is a deficient number, since it is larger than the sum of its proper divisors (518487082954).

1021102111202 is a wasteful number, since it uses less digits than its factorization.

1021102111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645342452.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021102111202 its reverse (2021112011201), we get a palindrome (3042214122403).

The spelling of 1021102111202 in words is "one trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, two hundred two".