221001022202202 has 32 divisors (see below), whose sum is σ = 535760053824960. Its totient is φ = 66970006727760.

The previous prime is 221001022202189. The next prime is 221001022202243. The reversal of 221001022202202 is 202202220100122.

221001022202202 is a `hidden beast` number, since 2 + 210 + 0 + 10 + 2 + 220 + 220 + 2 = 666.

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 15 ways as a sum of consecutive naturals, for example, 186027795873 + ... + 186027797060.

It is an arithmetic number, because the mean of its divisors is an integer number (16742501682030).

Almost surely, 2^{221001022202202} is an apocalyptic number.

221001022202202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221001022202202 is an abundant number, since it is smaller than the sum of its proper divisors (314759031622758).

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

221001022202202 is a wasteful number, since it uses less digits than its factorization.

221001022202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372055592955 (or 372055592949 counting only the distinct ones).

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

Adding to 221001022202202 its reverse (202202220100122), we get a palindrome (423203242302324).

The spelling of 221001022202202 in words is "two hundred twenty-one trillion, one billion, twenty-two million, two hundred two thousand, two hundred two".