421022124321 has 64 divisors (see below), whose sum is σ = 613779793920. Its totient is φ = 255632993280.

The previous prime is 421022124317. The next prime is 421022124337. The reversal of 421022124321 is 123421220124.

It is not a de Polignac number, because 421022124321 - 2² = 421022124317 is a prime.

It is a super-2 number, since 2×421022124321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421022124291 and 421022124300.

It is not an unprimeable number, because it can be changed into a prime (421022124221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 413171350 + ... + 413172368.

It is an arithmetic number, because the mean of its divisors is an integer number (9590309280).

Almost surely, 2^421022124321 is an apocalyptic number.

It is an amenable number.

421022124321 is a deficient number, since it is larger than the sum of its proper divisors (192757669599).

421022124321 is a wasteful number, since it uses less digits than its factorization.

421022124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421022124321 its reverse (123421220124), we get a palindrome (544443344445).

The spelling of 421022124321 in words is "four hundred twenty-one billion, twenty-two million, one hundred twenty-four thousand, three hundred twenty-one".