4221852660520 has 64 divisors (see below), whose sum is σ = 10642803062400. Its totient is φ = 1493726734080.

The previous prime is 4221852660517. The next prime is 4221852660539. The reversal of 4221852660520 is 250662581224.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129647500 + ... + 129680059.

It is an arithmetic number, because the mean of its divisors is an integer number (166293797850).

Almost surely, 2^{4221852660520} is an apocalyptic number.

4221852660520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4221852660520 is an abundant number, since it is smaller than the sum of its proper divisors (6420950401880).

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

4221852660520 is a wasteful number, since it uses less digits than its factorization.

4221852660520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259327618 (or 259327614 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 4221852660520 in words is "four trillion, two hundred twenty-one billion, eight hundred fifty-two million, six hundred sixty thousand, five hundred twenty".