202201212 has 24 divisors (see below), whose sum is σ = 472053456. Its totient is φ = 67364608.

The previous prime is 202201199. The next prime is 202201261. The reversal of 202201212 is 212102202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29188 + ... + 35444.

It is an arithmetic number, because the mean of its divisors is an integer number (19668894).

Almost surely, 2^202201212 is an apocalyptic number.

It is an amenable number.

202201212 is an abundant number, since it is smaller than the sum of its proper divisors (269852244).

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

202201212 is a wasteful number, since it uses less digits than its factorization.

202201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 202201212 is about 14219.7472551378. The cubic root of 202201212 is about 586.9411853732.

Adding to 202201212 its reverse (212102202), we get a palindrome (414303414).

The spelling of 202201212 in words is "two hundred two million, two hundred one thousand, two hundred twelve".