321868682220 has 24 divisors (see below), whose sum is σ = 901232310384. Its totient is φ = 85831648576.

The previous prime is 321868682203. The next prime is 321868682237. The reversal of 321868682220 is 22286868123.

It is an interprime number because it is at equal distance from previous prime (321868682203) and next prime (321868682237).

It is a self number, because there is not a number n which added to its sum of digits gives 321868682220.

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, 2682238959 + ... + 2682239078.

It is an arithmetic number, because the mean of its divisors is an integer number (37551346266).

Almost surely, 2^321868682220 is an apocalyptic number.

321868682220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321868682220 is an abundant number, since it is smaller than the sum of its proper divisors (579363628164).

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

321868682220 is a wasteful number, since it uses less digits than its factorization.

321868682220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364478049 (or 5364478047 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 321868682220 in words is "three hundred twenty-one billion, eight hundred sixty-eight million, six hundred eighty-two thousand, two hundred twenty".