20111210202 has 16 divisors (see below), whose sum is σ = 41203455552. Its totient is φ = 6540230880.

The previous prime is 20111210131. The next prime is 20111210233. The reversal of 20111210202 is 20201211102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40876198 + ... + 40876689.

It is an arithmetic number, because the mean of its divisors is an integer number (2575215972).

Almost surely, 2^20111210202 is an apocalyptic number.

20111210202 is an abundant number, since it is smaller than the sum of its proper divisors (21092245350).

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

20111210202 is a wasteful number, since it uses less digits than its factorization.

20111210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81752933.

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

Adding to 20111210202 its reverse (20201211102), we get a palindrome (40312421304).

The spelling of 20111210202 in words is "twenty billion, one hundred eleven million, two hundred ten thousand, two hundred two".