1421056512 has 120 divisors (see below), whose sum is σ = 4317387360. Its totient is φ = 448727040.

The previous prime is 1421056501. The next prime is 1421056543. The reversal of 1421056512 is 2156501241.

1421056512 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 0 + 5 + 651 + 2 = 666.

It is a super-2 number, since 2×1421056512² = 4038803220595212288, which contains 22 as substring.

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, 79437 + ... + 95667.

It is an arithmetic number, because the mean of its divisors is an integer number (35978228).

Almost surely, 2^1421056512 is an apocalyptic number.

1421056512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421056512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2158693680).

1421056512 is an abundant number, since it is smaller than the sum of its proper divisors (2896330848).

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

1421056512 is a wasteful number, since it uses less digits than its factorization.

1421056512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16274 (or 16255 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1421056512 is about 37696.9032149857. The cubic root of 1421056512 is about 1124.2695536862.

Adding to 1421056512 its reverse (2156501241), we get a palindrome (3577557753).

The spelling of 1421056512 in words is "one billion, four hundred twenty-one million, fifty-six thousand, five hundred twelve".