2120121100122 has 16 divisors (see below), whose sum is σ = 4240259992800. Its totient is φ = 706704067952.

The previous prime is 2120121100081. The next prime is 2120121100169. The reversal of 2120121100122 is 2210011210212.

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, 1197913 + ... + 2382275.

It is an arithmetic number, because the mean of its divisors is an integer number (265016249550).

Almost surely, 2^{2120121100122} is an apocalyptic number.

2120121100122 is an abundant number, since it is smaller than the sum of its proper divisors (2120138892678).

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

2120121100122 is a wasteful number, since it uses less digits than its factorization.

2120121100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482717.

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

Adding to 2120121100122 its reverse (2210011210212), we get a palindrome (4330132310334).

The spelling of 2120121100122 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred thousand, one hundred twenty-two".