10202221312 has 36 divisors (see below), whose sum is σ = 20520112536. Its totient is φ = 5062154240.

The previous prime is 10202221301. The next prime is 10202221319. The reversal of 10202221312 is 21312220201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (10202221319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118573 + ... + 185644.

It is an arithmetic number, because the mean of its divisors is an integer number (570003126).

Almost surely, 2^10202221312 is an apocalyptic number.

It is an amenable number.

10202221312 is an abundant number, since it is smaller than the sum of its proper divisors (10317891224).

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

10202221312 is an equidigital number, since it uses as much as digits as its factorization.

10202221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304364 (or 304350 counting only the distinct ones).

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

Adding to 10202221312 its reverse (21312220201), we get a palindrome (31514441513).

The spelling of 10202221312 in words is "ten billion, two hundred two million, two hundred twenty-one thousand, three hundred twelve".