122100121221112 has 32 divisors (see below), whose sum is σ = 230613137694720. Its totient is φ = 60603843333600.

The previous prime is 122100121221101. The next prime is 122100121221151. The reversal of 122100121221112 is 211122121001221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122100121221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33178168 + ... + 36674119.

It is an arithmetic number, because the mean of its divisors is an integer number (7206660552960).

Almost surely, 2^{122100121221112} is an apocalyptic number.

It is an amenable number.

122100121221112 is a deficient number, since it is larger than the sum of its proper divisors (108513016473608).

122100121221112 is a wasteful number, since it uses less digits than its factorization.

122100121221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69853891 (or 69853887 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122100121221112 its reverse (211122121001221), we get a palindrome (333222242222333).

The spelling of 122100121221112 in words is "one hundred twenty-two trillion, one hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".