2121023454022 has 32 divisors (see below), whose sum is σ = 3475956718080. Its totient is φ = 962660479680.

The previous prime is 2121023454019. The next prime is 2121023454031. The reversal of 2121023454022 is 2204543201212.

It is a super-2 number, since 2×2121023454022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52890463 + ... + 52930549.

It is an arithmetic number, because the mean of its divisors is an integer number (108623647440).

Almost surely, 2^{2121023454022} is an apocalyptic number.

2121023454022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121023454022 is a deficient number, since it is larger than the sum of its proper divisors (1354933264058).

2121023454022 is a wasteful number, since it uses less digits than its factorization.

2121023454022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43636.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 2121023454022 its reverse (2204543201212), we get a palindrome (4325566655234).

The spelling of 2121023454022 in words is "two trillion, one hundred twenty-one billion, twenty-three million, four hundred fifty-four thousand, twenty-two".