20122111122102 has 48 divisors (see below), whose sum is σ = 47626239789648. Its totient is φ = 6089290683840.

The previous prime is 20122111122083. The next prime is 20122111122161.

20122111122102 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69177393 + ... + 69467660.

It is an arithmetic number, because the mean of its divisors is an integer number (992213328951).

Almost surely, 2^{20122111122102} is an apocalyptic number.

20122111122102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20122111122102 is an abundant number, since it is smaller than the sum of its proper divisors (27504128667546).

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

20122111122102 is a wasteful number, since it uses less digits than its factorization.

20122111122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138645805 (or 138645802 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

It can be divided in two parts, 2012211 and 1122102, that added together give a palindrome (3134313).

The spelling of 20122111122102 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred two".