2021232102102 has 40 divisors (see below), whose sum is σ = 4795472248776. Its totient is φ = 634112031168.

The previous prime is 2021232102101. The next prime is 2021232102193. The reversal of 2021232102102 is 2012012321202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021232102101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 366960228 + ... + 366965735.

Almost surely, 2^{2021232102102} is an apocalyptic number.

2021232102102 is an abundant number, since it is smaller than the sum of its proper divisors (2774240146674).

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

2021232102102 is a wasteful number, since it uses less digits than its factorization.

2021232102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733925994 (or 733925985 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2021232102102 its reverse (2012012321202), we get a palindrome (4033244423304).

The spelling of 2021232102102 in words is "two trillion, twenty-one billion, two hundred thirty-two million, one hundred two thousand, one hundred two".