5421221461512 has 32 divisors (see below), whose sum is σ = 15058948504800. Its totient is φ = 1807073820432.

The previous prime is 5421221461507. The next prime is 5421221461529. The reversal of 5421221461512 is 2151641221245.

5421221461512 is a `hidden beast` number, since 5 + 4 + 2 + 1 + 2 + 21 + 4 + 615 + 12 = 666.

It is a super-2 number, since 2×5421221461512² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 12549123538 + ... + 12549123969.

It is an arithmetic number, because the mean of its divisors is an integer number (470592140775).

Almost surely, 2^{5421221461512} is an apocalyptic number.

It is an amenable number.

5421221461512 is an abundant number, since it is smaller than the sum of its proper divisors (9637727043288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5421221461512 is a wasteful number, since it uses less digits than its factorization.

5421221461512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25098247522 (or 25098247512 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

Adding to 5421221461512 its reverse (2151641221245), we get a palindrome (7572862682757).

The spelling of 5421221461512 in words is "five trillion, four hundred twenty-one billion, two hundred twenty-one million, four hundred sixty-one thousand, five hundred twelve".