122112000020 has 24 divisors (see below), whose sum is σ = 261891270144. Its totient is φ = 47805548576.

The previous prime is 122111999987. The next prime is 122112000029. The reversal of 122112000020 is 20000211221.

It is a happy number.

It is a super-2 number, since 2×122112000020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111999965 and 122112000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112000029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64952252 + ... + 64954131.

It is an arithmetic number, because the mean of its divisors is an integer number (10912136256).

Almost surely, 2^122112000020 is an apocalyptic number.

122112000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122112000020 is an abundant number, since it is smaller than the sum of its proper divisors (139779270124).

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

122112000020 is a wasteful number, since it uses less digits than its factorization.

122112000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129906439 (or 129906437 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122112000020 its reverse (20000211221), we get a palindrome (142112211241).

The spelling of 122112000020 in words is "one hundred twenty-two billion, one hundred twelve million, twenty", and thus it is an aban number.