20102102202 has 128 divisors (see below), whose sum is σ = 51279298560. Its totient is φ = 5109753600.

The previous prime is 20102102063. The next prime is 20102102219. The reversal of 20102102202 is 20220120102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17464327 + ... + 17465477.

It is an arithmetic number, because the mean of its divisors is an integer number (400619520).

Almost surely, 2^20102102202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20102102202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25639649280).

20102102202 is an abundant number, since it is smaller than the sum of its proper divisors (31177196358).

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

20102102202 is a wasteful number, since it uses less digits than its factorization.

20102102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308.

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

Adding to 20102102202 its reverse (20220120102), we get a palindrome (40322222304).

The spelling of 20102102202 in words is "twenty billion, one hundred two million, one hundred two thousand, two hundred two".