2121202322200 has 48 divisors (see below), whose sum is σ = 5311164282480. Its totient is φ = 783213164160.

The previous prime is 2121202322171. The next prime is 2121202322203. The reversal of 2121202322200 is 22232021212.

It is a super-2 number, since 2×2121202322200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121202322203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407920924 + ... + 407926123.

It is an arithmetic number, because the mean of its divisors is an integer number (110649255885).

Almost surely, 2^{2121202322200} is an apocalyptic number.

2121202322200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121202322200 is an abundant number, since it is smaller than the sum of its proper divisors (3189961960280).

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

2121202322200 is a wasteful number, since it uses less digits than its factorization.

2121202322200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815847076 (or 815847067 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2121202322200 its reverse (22232021212), we get a palindrome (2143434343412).

The spelling of 2121202322200 in words is "two trillion, one hundred twenty-one billion, two hundred two million, three hundred twenty-two thousand, two hundred".