20011211022110 has 32 divisors (see below), whose sum is σ = 44908276165632. Its totient is φ = 6237260578080.

The previous prime is 20011211022083. The next prime is 20011211022139. The reversal of 20011211022110 is 1122011211002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 12994292102 + ... + 12994293641.

It is an arithmetic number, because the mean of its divisors is an integer number (1403383630176).

Almost surely, 2^{20011211022110} is an apocalyptic number.

20011211022110 is an abundant number, since it is smaller than the sum of its proper divisors (24897065143522).

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

20011211022110 is a wasteful number, since it uses less digits than its factorization.

20011211022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25988585768.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20011211022110 its reverse (1122011211002), we get a palindrome (21133222233112).

The spelling of 20011211022110 in words is "twenty trillion, eleven billion, two hundred eleven million, twenty-two thousand, one hundred ten".