122120021220102 has 24 divisors (see below), whose sum is σ = 280157695740936. Its totient is φ = 38312163519936.

The previous prime is 122120021220077. The next prime is 122120021220149. The reversal of 122120021220102 is 201022120021221.

It is a happy number.

122120021220102 is a `hidden beast` number, since 1 + 221 + 200 + 21 + 220 + 1 + 0 + 2 = 666.

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 11 ways as a sum of consecutive naturals, for example, 199542518028 + ... + 199542518639.

It is an arithmetic number, because the mean of its divisors is an integer number (11673237322539).

Almost surely, 2^{122120021220102} is an apocalyptic number.

122120021220102 is an abundant number, since it is smaller than the sum of its proper divisors (158037674520834).

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

122120021220102 is a wasteful number, since it uses less digits than its factorization.

122120021220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399085036692 (or 399085036689 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122120021220102 its reverse (201022120021221), we get a palindrome (323142141241323).

The spelling of 122120021220102 in words is "one hundred twenty-two trillion, one hundred twenty billion, twenty-one million, two hundred twenty thousand, one hundred two".