2121000232122 has 24 divisors (see below), whose sum is σ = 4595691320064. Its totient is φ = 706970720904.

The previous prime is 2121000232051. The next prime is 2121000232133. The reversal of 2121000232122 is 2212320001212.

2121000232122 is a `hidden beast` number, since 212 + 100 + 0 + 232 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2121000232095 and 2121000232104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1998618 + ... + 2869925.

It is an arithmetic number, because the mean of its divisors is an integer number (191487138336).

Almost surely, 2^{2121000232122} is an apocalyptic number.

2121000232122 is an abundant number, since it is smaller than the sum of its proper divisors (2474691087942).

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

2121000232122 is a wasteful number, since it uses less digits than its factorization.

2121000232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892754 (or 4892751 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2121000232122 its reverse (2212320001212), we get a palindrome (4333320233334).

The spelling of 2121000232122 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-two thousand, one hundred twenty-two".