129212060884 has 36 divisors (see below), whose sum is σ = 229052510400. Its totient is φ = 63778564080.

The previous prime is 129212060843. The next prime is 129212060891. The reversal of 129212060884 is 488060212921.

It is a super-2 number, since 2×129212060884² (a number of 23 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 129212060884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14041717 + ... + 14050915.

Almost surely, 2^129212060884 is an apocalyptic number.

It is an amenable number.

129212060884 is a deficient number, since it is larger than the sum of its proper divisors (99840449516).

129212060884 is a wasteful number, since it uses less digits than its factorization.

129212060884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740 (or 9635 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 129212060884 in words is "one hundred twenty-nine billion, two hundred twelve million, sixty thousand, eight hundred eighty-four".