20110111100010 has 32 divisors (see below), whose sum is σ = 53626962934080. Its totient is φ = 5362696293264.

The previous prime is 20110111099951. The next prime is 20110111100077. The reversal of 20110111100010 is 1000111101102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20110111099965 and 20110111100001.

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, 37240946212 + ... + 37240946751.

It is an arithmetic number, because the mean of its divisors is an integer number (1675842591690).

Almost surely, 2^{20110111100010} is an apocalyptic number.

20110111100010 is an abundant number, since it is smaller than the sum of its proper divisors (33516851834070).

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

20110111100010 is a wasteful number, since it uses less digits than its factorization.

20110111100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74481892979 (or 74481892973 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 20110111100010 its reverse (1000111101102), we get a palindrome (21110222201112).

The spelling of 20110111100010 in words is "twenty trillion, one hundred ten billion, one hundred eleven million, one hundred thousand, ten".