122021112012 has 12 divisors (see below), whose sum is σ = 284715928056. Its totient is φ = 40673704000.

The previous prime is 122021111969. The next prime is 122021112023. The reversal of 122021112012 is 210211120221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 122021111982 and 122021112000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084212989 + ... + 5084213012.

It is an arithmetic number, because the mean of its divisors is an integer number (23726327338).

Almost surely, 2^122021112012 is an apocalyptic number.

122021112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122021112012 is an abundant number, since it is smaller than the sum of its proper divisors (162694816044).

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

122021112012 is a wasteful number, since it uses less digits than its factorization.

122021112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168426008 (or 10168426006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122021112012 its reverse (210211120221), we get a palindrome (332232232233).

The spelling of 122021112012 in words is "one hundred twenty-two billion, twenty-one million, one hundred twelve thousand, twelve".