202102112022210 has 128 divisors (see below), whose sum is σ = 543266124318720. Its totient is φ = 53461503576000.

The previous prime is 202102112022133. The next prime is 202102112022227. The reversal of 202102112022210 is 12220211201202.

It is a happy number.

202102112022210 is a `hidden beast` number, since 2 + 0 + 210 + 211 + 20 + 2 + 221 + 0 = 666.

It is a super-4 number, since 4×202102112022210⁴ (a number of 58 digits) contains 4444 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89108929 + ... + 91348811.

It is an arithmetic number, because the mean of its divisors is an integer number (4244266596240).

Almost surely, 2^{202102112022210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202102112022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271633062159360).

202102112022210 is an abundant number, since it is smaller than the sum of its proper divisors (341164012296510).

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

202102112022210 is a wasteful number, since it uses less digits than its factorization.

202102112022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242581 (or 2242575 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202102112022210 its reverse (12220211201202), we get a palindrome (214322323223412).

The spelling of 202102112022210 in words is "two hundred two trillion, one hundred two billion, one hundred twelve million, twenty-two thousand, two hundred ten".