2021120202102 has 32 divisors (see below), whose sum is σ = 4081636815360. Its totient is φ = 667141151040.

The previous prime is 2021120202083. The next prime is 2021120202181. The reversal of 2021120202102 is 2012020211202.

It is a super-3 number, since 3×2021120202102³ (a number of 38 digits) contains 333 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, 24970674 + ... + 25051482.

It is an arithmetic number, because the mean of its divisors is an integer number (127551150480).

Almost surely, 2^{2021120202102} is an apocalyptic number.

2021120202102 is an abundant number, since it is smaller than the sum of its proper divisors (2060516613258).

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

2021120202102 is a wasteful number, since it uses less digits than its factorization.

2021120202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121388.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021120202102 its reverse (2012020211202), we get a palindrome (4033140413304).

It can be divided in two parts, 2021120 and 202102, that added together give a palindrome (2223222).

The spelling of 2021120202102 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred two thousand, one hundred two".