20100110220111 has 16 divisors (see below), whose sum is σ = 28037261191680. Its totient is φ = 12784511799840.

The previous prime is 20100110220109. The next prime is 20100110220139. The reversal of 20100110220111 is 11102201100102.

It is not a de Polignac number, because 20100110220111 - 2¹ = 20100110220109 is a prime.

It is a super-2 number, since 2×20100110220111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100110220511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374402395 + ... + 374456076.

It is an arithmetic number, because the mean of its divisors is an integer number (1752328824480).

Almost surely, 2^{20100110220111} is an apocalyptic number.

20100110220111 is a deficient number, since it is larger than the sum of its proper divisors (7937150971569).

20100110220111 is a wasteful number, since it uses less digits than its factorization.

20100110220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748858886.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20100110220111 its reverse (11102201100102), we get a palindrome (31202311320213).

The spelling of 20100110220111 in words is "twenty trillion, one hundred billion, one hundred ten million, two hundred twenty thousand, one hundred eleven".