20111021202 has 16 divisors (see below), whose sum is σ = 40223468160. Its totient is φ = 6703436112.

The previous prime is 20111021197. The next prime is 20111021237. The reversal of 20111021202 is 20212011102.

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, 240199 + ... + 312917.

It is an arithmetic number, because the mean of its divisors is an integer number (2513966760).

Almost surely, 2^20111021202 is an apocalyptic number.

20111021202 is an abundant number, since it is smaller than the sum of its proper divisors (20112446958).

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

20111021202 is a wasteful number, since it uses less digits than its factorization.

20111021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118817.

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

Adding to 20111021202 its reverse (20212011102), we get a palindrome (40323032304).

The spelling of 20111021202 in words is "twenty billion, one hundred eleven million, twenty-one thousand, two hundred two".