20881547212412 has 24 divisors (see below), whose sum is σ = 37530582230400. Its totient is φ = 10158527234880.

The previous prime is 20881547212397. The next prime is 20881547212451. The reversal of 20881547212412 is 21421274518802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30928214 + ... + 31596162.

It is an arithmetic number, because the mean of its divisors is an integer number (1563774259600).

Almost surely, 2^{20881547212412} is an apocalyptic number.

It is an amenable number.

20881547212412 is a deficient number, since it is larger than the sum of its proper divisors (16649035017988).

20881547212412 is a wasteful number, since it uses less digits than its factorization.

20881547212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879221 (or 879219 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 47.

The spelling of 20881547212412 in words is "twenty trillion, eight hundred eighty-one billion, five hundred forty-seven million, two hundred twelve thousand, four hundred twelve".