122012220021012 has 18 divisors (see below), whose sum is σ = 308419778386538. Its totient is φ = 40670740006992.

The previous prime is 122012220020969. The next prime is 122012220021091. The reversal of 122012220021012 is 210120022210221.

It is a happy number.

122012220021012 is a `hidden beast` number, since 1 + 220 + 1 + 2 + 220 + 0 + 210 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91995452713476 + 30016767307536 = 9591426^2 + 5478756^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 1694614166923 + ... + 1694614166994.

Almost surely, 2^{122012220021012} is an apocalyptic number.

122012220021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012220021012 is an abundant number, since it is smaller than the sum of its proper divisors (186407558365526).

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

122012220021012 is a wasteful number, since it uses less digits than its factorization.

122012220021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389228333927 (or 3389228333922 counting only the distinct ones).

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

Adding to 122012220021012 its reverse (210120022210221), we get a palindrome (332132242231233).

The spelling of 122012220021012 in words is "one hundred twenty-two trillion, twelve billion, two hundred twenty million, twenty-one thousand, twelve".