2121620111050 has 24 divisors (see below), whose sum is σ = 4304960080992. Its totient is φ = 771498222000.

The previous prime is 2121620111029. The next prime is 2121620111123. The reversal of 2121620111050 is 501110261212.

It is a super-2 number, since 2×2121620111050² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1928745006 + ... + 1928746105.

It is an arithmetic number, because the mean of its divisors is an integer number (179373336708).

Almost surely, 2^{2121620111050} is an apocalyptic number.

2121620111050 is an abundant number, since it is smaller than the sum of its proper divisors (2183339969942).

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

2121620111050 is a wasteful number, since it uses less digits than its factorization.

2121620111050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857491134 (or 3857491129 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 2121620111050 its reverse (501110261212), we get a palindrome (2622730372262).

The spelling of 2121620111050 in words is "two trillion, one hundred twenty-one billion, six hundred twenty million, one hundred eleven thousand, fifty".