2121203102022 has 48 divisors (see below), whose sum is σ = 4650897981600. Its totient is φ = 698643219456.

The previous prime is 2121203102017. The next prime is 2121203102023. The reversal of 2121203102022 is 2202013021212.

2121203102022 is a `hidden beast` number, since 212 + 120 + 310 + 2 + 0 + 22 = 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 = 2121203101986 and 2121203102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121203102023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441633 + ... + 2106524.

It is an arithmetic number, because the mean of its divisors is an integer number (96893707950).

Almost surely, 2^{2121203102022} is an apocalyptic number.

2121203102022 is an abundant number, since it is smaller than the sum of its proper divisors (2529694879578).

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

2121203102022 is a wasteful number, since it uses less digits than its factorization.

2121203102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548717 (or 2548714 counting only the distinct ones).

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

Adding to 2121203102022 its reverse (2202013021212), we get a palindrome (4323216123234).

The spelling of 2121203102022 in words is "two trillion, one hundred twenty-one billion, two hundred three million, one hundred two thousand, twenty-two".