202201222212 has 48 divisors (see below), whose sum is σ = 571882248000. Its totient is φ = 61273097280.

The previous prime is 202201222183. The next prime is 202201222213. The reversal of 202201222212 is 212222102202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202201222213) 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, 85100337 + ... + 85102712.

It is an arithmetic number, because the mean of its divisors is an integer number (11914213500).

Almost surely, 2^202201222212 is an apocalyptic number.

202201222212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202201222212 is an abundant number, since it is smaller than the sum of its proper divisors (369681025788).

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

202201222212 is a wasteful number, since it uses less digits than its factorization.

202201222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170203073 (or 170203065 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202201222212 its reverse (212222102202), we get a palindrome (414423324414).

The spelling of 202201222212 in words is "two hundred two billion, two hundred one million, two hundred twenty-two thousand, two hundred twelve".