312221010202 has 16 divisors (see below), whose sum is σ = 471771216000. Its totient is φ = 154964273760.

The previous prime is 312221010191. The next prime is 312221010203. The reversal of 312221010202 is 202010122213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312221010203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863174 + ... + 2023822.

It is an arithmetic number, because the mean of its divisors is an integer number (29485701000).

Almost surely, 2^312221010202 is an apocalyptic number.

312221010202 is a deficient number, since it is larger than the sum of its proper divisors (159550205798).

312221010202 is a wasteful number, since it uses less digits than its factorization.

312221010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167781.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 312221010202 its reverse (202010122213), we get a palindrome (514231132415).

The spelling of 312221010202 in words is "three hundred twelve billion, two hundred twenty-one million, ten thousand, two hundred two".