200122101220 has 48 divisors (see below), whose sum is σ = 425126116800. Its totient is φ = 79124791680.

The previous prime is 200122101149. The next prime is 200122101227. The reversal of 200122101220 is 22101221002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 200122101220.

It is not an unprimeable number, because it can be changed into a prime (200122101227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803875 + ... + 1022965.

It is an arithmetic number, because the mean of its divisors is an integer number (8856794100).

Almost surely, 2^200122101220 is an apocalyptic number.

200122101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200122101220 is an abundant number, since it is smaller than the sum of its proper divisors (225004015580).

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

200122101220 is a wasteful number, since it uses less digits than its factorization.

200122101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219628 (or 219626 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200122101220 its reverse (22101221002), we get a palindrome (222223322222).

The spelling of 200122101220 in words is "two hundred billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty".