202122120200 has 192 divisors, whose sum is σ = 630960865920. Its totient is φ = 58152960000.

The previous prime is 202122120157. The next prime is 202122120203. The reversal of 202122120200 is 2021221202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (202122120203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304601 + ... + 705000.

It is an arithmetic number, because the mean of its divisors is an integer number (3286254510).

Almost surely, 2^202122120200 is an apocalyptic number.

202122120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122120200 is an abundant number, since it is smaller than the sum of its proper divisors (428838745720).

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

202122120200 is a wasteful number, since it uses less digits than its factorization.

202122120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009648 (or 1009639 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202122120200 its reverse (2021221202), we get a palindrome (204143341402).

202122120200 divided by its reverse (2021221202) gives a square (100 = 10²).

It can be divided in two parts, 20212 and 2120200, that added together give a palindrome (2140412).

The spelling of 202122120200 in words is "two hundred two billion, one hundred twenty-two million, one hundred twenty thousand, two hundred".