2021202102 has 32 divisors (see below), whose sum is σ = 4297317120. Its totient is φ = 631951200.

The previous prime is 2021202101. The next prime is 2021202103. The reversal of 2021202102 is 2012021202.

It is an interprime number because it is at equal distance from previous prime (2021202101) and next prime (2021202103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76258 + ... + 99285.

It is an arithmetic number, because the mean of its divisors is an integer number (134291160).

Almost surely, 2^2021202102 is an apocalyptic number.

2021202102 is an abundant number, since it is smaller than the sum of its proper divisors (2276115018).

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

2021202102 is a wasteful number, since it uses less digits than its factorization.

2021202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175668.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2021202102 is about 44957.7813287088. The cubic root of 2021202102 is about 1264.3575718030.

Adding to 2021202102 its reverse (2012021202), we get a palindrome (4033223304).

Subtracting from 2021202102 its reverse (2012021202), we obtain a square (9180900 = 3030²).

The spelling of 2021202102 in words is "two billion, twenty-one million, two hundred two thousand, one hundred two".