20100111101122 has 8 divisors (see below), whose sum is σ = 32469410240316. Its totient is φ = 9276974354352.

The previous prime is 20100111101117. The next prime is 20100111101131. The reversal of 20100111101122 is 22110111100102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20041299516001 + 58811585121 = 4476751^2 + 242511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386540598073 + ... + 386540598124.

Almost surely, 2^{20100111101122} is an apocalyptic number.

20100111101122 is a deficient number, since it is larger than the sum of its proper divisors (12369299139194).

20100111101122 is a wasteful number, since it uses less digits than its factorization.

20100111101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773081196212.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20100111101122 its reverse (22110111100102), we get a palindrome (42210222201224).

The spelling of 20100111101122 in words is "twenty trillion, one hundred billion, one hundred eleven million, one hundred one thousand, one hundred twenty-two".