4221642453512 has 32 divisors (see below), whose sum is σ = 8635687188480. Its totient is φ = 1918815178560.

The previous prime is 4221642453461. The next prime is 4221642453517. The reversal of 4221642453512 is 2153542461224.

It is a super-2 number, since 2×4221642453512² (a number of 26 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 4221642453512.

It is not an unprimeable number, because it can be changed into a prime (4221642453517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94073 + ... + 2907255.

It is an arithmetic number, because the mean of its divisors is an integer number (269865224640).

Almost surely, 2^{4221642453512} is an apocalyptic number.

It is an amenable number.

4221642453512 is an abundant number, since it is smaller than the sum of its proper divisors (4414044734968).

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

4221642453512 is a wasteful number, since it uses less digits than its factorization.

4221642453512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830253 (or 2830249 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

The spelling of 4221642453512 in words is "four trillion, two hundred twenty-one billion, six hundred forty-two million, four hundred fifty-three thousand, five hundred twelve".