122100122020020 has 72 divisors (see below), whose sum is σ = 360821080869984. Its totient is φ = 30846346610112.

The previous prime is 122100122020013. The next prime is 122100122020027. The reversal of 122100122020020 is 20020221001221.

It is an interprime number because it is at equal distance from previous prime (122100122020013) and next prime (122100122020027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100122020027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2818540714 + ... + 2818584033.

It is an arithmetic number, because the mean of its divisors is an integer number (5011403900972).

Almost surely, 2^{122100122020020} is an apocalyptic number.

122100122020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100122020020 is an abundant number, since it is smaller than the sum of its proper divisors (238720958849964).

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

122100122020020 is a wasteful number, since it uses less digits than its factorization.

122100122020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637124797 (or 5637124776 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122100122020020 its reverse (20020221001221), we get a palindrome (142120343021241).

The spelling of 122100122020020 in words is "one hundred twenty-two trillion, one hundred billion, one hundred twenty-two million, twenty thousand, twenty".