2151242421512 has 32 divisors (see below), whose sum is σ = 4084784400000. Its totient is φ = 1061967561408.

The previous prime is 2151242421421. The next prime is 2151242421547.

2151242421512 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2151242421512² (a number of 25 digits) contains 22 as substring.

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, 26952239 + ... + 27031937.

It is an arithmetic number, because the mean of its divisors is an integer number (127649512500).

Almost surely, 2^{2151242421512} is an apocalyptic number.

It is an amenable number.

2151242421512 is a deficient number, since it is larger than the sum of its proper divisors (1933541978488).

2151242421512 is a wasteful number, since it uses less digits than its factorization.

2151242421512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122493 (or 122489 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The spelling of 2151242421512 in words is "two trillion, one hundred fifty-one billion, two hundred forty-two million, four hundred twenty-one thousand, five hundred twelve".