20112202110 has 512 divisors, whose sum is σ = 69542903808. Its totient is φ = 3585669120.

The previous prime is 20112202051. The next prime is 20112202129. The reversal of 20112202110 is 1120221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 25555137 + ... + 25555923.

It is an arithmetic number, because the mean of its divisors is an integer number (135825984).

Almost surely, 2^20112202110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112202110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34771451904).

20112202110 is an abundant number, since it is smaller than the sum of its proper divisors (49430701698).

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

20112202110 is a wasteful number, since it uses less digits than its factorization.

20112202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

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

Adding to 20112202110 its reverse (1120221102), we get a palindrome (21232423212).

It can be divided in two parts, 20112 and 202110, that added together give a palindrome (222222).

The spelling of 20112202110 in words is "twenty billion, one hundred twelve million, two hundred two thousand, one hundred ten".