202011222012210 has 144 divisors (see below), whose sum is σ = 596968343748504. Its totient is φ = 47108689731072.

The previous prime is 202011222012169. The next prime is 202011222012289. The reversal of 202011222012210 is 12210222110202.

It is a happy number.

202011222012210 is a `hidden beast` number, since 20 + 201 + 1 + 2 + 220 + 1 + 221 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 71078607840969 + 130932614171241 = 8430813^2 + 11442579^2 .

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 71 ways as a sum of consecutive naturals, for example, 238717747 + ... + 239562486.

Almost surely, 2^{202011222012210} is an apocalyptic number.

202011222012210 is an abundant number, since it is smaller than the sum of its proper divisors (394957121736294).

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

202011222012210 is a wasteful number, since it uses less digits than its factorization.

202011222012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478280297 (or 478280275 counting only the distinct ones).

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

Adding to 202011222012210 its reverse (12210222110202), we get a palindrome (214221444122412).

The spelling of 202011222012210 in words is "two hundred two trillion, eleven billion, two hundred twenty-two million, twelve thousand, two hundred ten".