315620215262222 has 48 divisors (see below), whose sum is σ = 527113981658880. Its totient is φ = 141611146425216.

The previous prime is 315620215262153. The next prime is 315620215262239. The reversal of 315620215262222 is 222262512026513.

It is a super-2 number, since 2×315620215262222² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315620215262222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78866798 + ... + 82772049.

It is an arithmetic number, because the mean of its divisors is an integer number (10981541284560).

Almost surely, 2^{315620215262222} is an apocalyptic number.

315620215262222 is a deficient number, since it is larger than the sum of its proper divisors (211493766396658).

315620215262222 is a wasteful number, since it uses less digits than its factorization.

315620215262222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161639037 (or 161639024 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 315620215262222 its reverse (222262512026513), we get a palindrome (537882727288735).

The spelling of 315620215262222 in words is "three hundred fifteen trillion, six hundred twenty billion, two hundred fifteen million, two hundred sixty-two thousand, two hundred twenty-two".