20112210131102 has 4 divisors (see below), whose sum is σ = 30168315196656. Its totient is φ = 10056105065550.

The previous prime is 20112210131087. The next prime is 20112210131113. The reversal of 20112210131102 is 20113101221102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028052532774 + ... + 5028052532777.

It is an arithmetic number, because the mean of its divisors is an integer number (7542078799164).

Almost surely, 2^{20112210131102} is an apocalyptic number.

20112210131102 is a deficient number, since it is larger than the sum of its proper divisors (10056105065554).

20112210131102 is a wasteful number, since it uses less digits than its factorization.

20112210131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056105065553.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20112210131102 its reverse (20113101221102), we get a palindrome (40225311352204).

The spelling of 20112210131102 in words is "twenty trillion, one hundred twelve billion, two hundred ten million, one hundred thirty-one thousand, one hundred two".