122101100220020 has 48 divisors (see below), whose sum is σ = 257536288719360. Its totient is φ = 48626356073856.

The previous prime is 122101100220013. The next prime is 122101100220037. The reversal of 122101100220020 is 20022001101221.

It is a junction number, because it is equal to n+sod(n) for n = 122101100219977 and 122101100220004.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 329405309 + ... + 329775771.

It is an arithmetic number, because the mean of its divisors is an integer number (5365339348320).

Almost surely, 2^{122101100220020} is an apocalyptic number.

122101100220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101100220020 is an abundant number, since it is smaller than the sum of its proper divisors (135435188499340).

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

122101100220020 is a wasteful number, since it uses less digits than its factorization.

122101100220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442664 (or 442662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122101100220020 its reverse (20022001101221), we get a palindrome (142123101321241).

The spelling of 122101100220020 in words is "one hundred twenty-two trillion, one hundred one billion, one hundred million, two hundred twenty thousand, twenty".