21320230000122 has 24 divisors (see below), whose sum is σ = 46433177952564. Its totient is φ = 7069920827904.

The previous prime is 21320230000081. The next prime is 21320230000229. The reversal of 21320230000122 is 22100003202312.

21320230000122 is a `hidden beast` number, since 21 + 320 + 2 + 300 + 0 + 0 + 1 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21041202010761 + 279027989361 = 4587069^2 + 528231^2 .

It is a super-2 number, since 2×21320230000122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21320230000095 and 21320230000104.

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, 3068538553 + ... + 3068545500.

Almost surely, 2^{21320230000122} is an apocalyptic number.

21320230000122 is an abundant number, since it is smaller than the sum of its proper divisors (25112947952442).

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

21320230000122 is a wasteful number, since it uses less digits than its factorization.

21320230000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137084254 (or 6137084251 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21320230000122 its reverse (22100003202312), we get a palindrome (43420233202434).

The spelling of 21320230000122 in words is "twenty-one trillion, three hundred twenty billion, two hundred thirty million, one hundred twenty-two", and thus it is an aban number.