2021211120102 has 16 divisors (see below), whose sum is σ = 4042455395952. Its totient is φ = 673731514080.

The previous prime is 2021211120101. The next prime is 2021211120143. The reversal of 2021211120102 is 2010211121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021211120101) 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, 550549 + ... + 2084592.

It is an arithmetic number, because the mean of its divisors is an integer number (252653462247).

Almost surely, 2^{2021211120102} is an apocalyptic number.

2021211120102 is an abundant number, since it is smaller than the sum of its proper divisors (2021244275850).

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

2021211120102 is a wasteful number, since it uses less digits than its factorization.

2021211120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762983.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021211120102 its reverse (2010211121202), we get a palindrome (4031422241304).

The spelling of 2021211120102 in words is "two trillion, twenty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred two".