221610000951 has 32 divisors (see below), whose sum is σ = 329657472000. Its totient is φ = 147134594880.

The previous prime is 221610000929. The next prime is 221610000967. The reversal of 221610000951 is 159000016122.

It is not a de Polignac number, because 221610000951 - 2¹⁰ = 221609999927 is a prime.

It is a super-2 number, since 2×221610000951² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221610000991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24485475 + ... + 24494523.

It is an arithmetic number, because the mean of its divisors is an integer number (10301796000).

Almost surely, 2^221610000951 is an apocalyptic number.

221610000951 is a deficient number, since it is larger than the sum of its proper divisors (108047471049).

221610000951 is a wasteful number, since it uses less digits than its factorization.

221610000951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12676 (or 12670 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 221610000951 in words is "two hundred twenty-one billion, six hundred ten million, nine hundred fifty-one", and thus it is an aban number.