20202111210 has 32 divisors (see below), whose sum is σ = 48607224192. Its totient is φ = 5373656640.

The previous prime is 20202111199. The next prime is 20202111239. The reversal of 20202111210 is 1211120202.

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, 836206 + ... + 860025.

It is an arithmetic number, because the mean of its divisors is an integer number (1518975756).

Almost surely, 2^20202111210 is an apocalyptic number.

20202111210 is an abundant number, since it is smaller than the sum of its proper divisors (28405112982).

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

20202111210 is a wasteful number, since it uses less digits than its factorization.

20202111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696638.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20202111210 its reverse (1211120202), we get a palindrome (21413231412).

The spelling of 20202111210 in words is "twenty billion, two hundred two million, one hundred eleven thousand, two hundred ten".