202112220210 has 32 divisors (see below), whose sum is σ = 513602819712. Its totient is φ = 50726204160.

The previous prime is 202112220199. The next prime is 202112220221. The reversal of 202112220210 is 12022211202.

It is an interprime number because it is at equal distance from previous prime (202112220199) and next prime (202112220221).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202112220210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198148726 + ... + 198149745.

It is an arithmetic number, because the mean of its divisors is an integer number (16050088116).

Almost surely, 2^202112220210 is an apocalyptic number.

202112220210 is an abundant number, since it is smaller than the sum of its proper divisors (311490599502).

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

202112220210 is a wasteful number, since it uses less digits than its factorization.

202112220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396298498.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202112220210 its reverse (12022211202), we get a palindrome (214134431412).

The spelling of 202112220210 in words is "two hundred two billion, one hundred twelve million, two hundred twenty thousand, two hundred ten".