220851538167812 has 12 divisors (see below), whose sum is σ = 386490298399296. Its totient is φ = 110425738625160.

The previous prime is 220851538167809. The next prime is 220851538167847. The reversal of 220851538167812 is 218761835158022.

It is a super-2 number, since 2×220851538167812² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19161137 + ... + 28440327.

It is an arithmetic number, because the mean of its divisors is an integer number (32207524866608).

Almost surely, 2^{220851538167812} is an apocalyptic number.

It is an amenable number.

220851538167812 is a deficient number, since it is larger than the sum of its proper divisors (165638760231484).

220851538167812 is a wasteful number, since it uses less digits than its factorization.

220851538167812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15229378 (or 15229376 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 220851538167812 in words is "two hundred twenty trillion, eight hundred fifty-one billion, five hundred thirty-eight million, one hundred sixty-seven thousand, eight hundred twelve".