101200012122 has 32 divisors (see below), whose sum is σ = 225934917120. Its totient is φ = 29953491120.

The previous prime is 101200012117. The next prime is 101200012129. The reversal of 101200012122 is 221210002101.

It is a junction number, because it is equal to n+sod(n) for n = 101200012098 and 101200012107.

It is not an unprimeable number, because it can be changed into a prime (101200012129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17826622 + ... + 17832297.

It is an arithmetic number, because the mean of its divisors is an integer number (7060466160).

Almost surely, 2^101200012122 is an apocalyptic number.

101200012122 is an abundant number, since it is smaller than the sum of its proper divisors (124734904998).

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

101200012122 is a wasteful number, since it uses less digits than its factorization.

101200012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35658978.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101200012122 its reverse (221210002101), we get a palindrome (322410014223).

The spelling of 101200012122 in words is "one hundred one billion, two hundred million, twelve thousand, one hundred twenty-two".