2121221333102 has 64 divisors (see below), whose sum is σ = 3401816140800. Its totient is φ = 989155722240.

The previous prime is 2121221333089. The next prime is 2121221333123. The reversal of 2121221333102 is 2013331221212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890893952 + ... + 890896332.

It is an arithmetic number, because the mean of its divisors is an integer number (53153377200).

Almost surely, 2^{2121221333102} is an apocalyptic number.

2121221333102 is a deficient number, since it is larger than the sum of its proper divisors (1280594807698).

2121221333102 is a wasteful number, since it uses less digits than its factorization.

2121221333102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121221333102 its reverse (2013331221212), we get a palindrome (4134552554314).

The spelling of 2121221333102 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-three thousand, one hundred two".