2121121010022 has 48 divisors (see below), whose sum is σ = 4959903112560. Its totient is φ = 602958240192.

The previous prime is 2121121010003. The next prime is 2121121010087. The reversal of 2121121010022 is 2200101211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121121009983 and 2121121010010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18253497 + ... + 18369332.

It is an arithmetic number, because the mean of its divisors is an integer number (103331314845).

Almost surely, 2^{2121121010022} is an apocalyptic number.

2121121010022 is an abundant number, since it is smaller than the sum of its proper divisors (2838782102538).

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

2121121010022 is a wasteful number, since it uses less digits than its factorization.

2121121010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36623045 (or 36623038 counting only the distinct ones).

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

Adding to 2121121010022 its reverse (2200101211212), we get a palindrome (4321222221234).

The spelling of 2121121010022 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, ten thousand, twenty-two".