2121021010122 has 32 divisors (see below), whose sum is σ = 4848190049664. Its totient is φ = 605988249600.

The previous prime is 2121021010111. The next prime is 2121021010123. The reversal of 2121021010122 is 2210101201212.

It is not an unprimeable number, because it can be changed into a prime (2121021010123) 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, 746122 + ... + 2190602.

It is an arithmetic number, because the mean of its divisors is an integer number (151505939052).

Almost surely, 2^{2121021010122} is an apocalyptic number.

2121021010122 is an abundant number, since it is smaller than the sum of its proper divisors (2727169039542).

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

2121021010122 is a wasteful number, since it uses less digits than its factorization.

2121021010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479454.

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

Adding to 2121021010122 its reverse (2210101201212), we get a palindrome (4331122211334).

The spelling of 2121021010122 in words is "two trillion, one hundred twenty-one billion, twenty-one million, ten thousand, one hundred twenty-two".