21122230322000 has 40 divisors (see below), whose sum is σ = 51073552923432. Its totient is φ = 8448892128000.

The previous prime is 21122230321961. The next prime is 21122230322027. The reversal of 21122230322000 is 22303222112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2351916691216 + 18770313630784 = 1533596^2 + 4332472^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×21122230322000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5280555581 + ... + 5280559580.

Almost surely, 2^{21122230322000} is an apocalyptic number.

21122230322000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122230322000 is an abundant number, since it is smaller than the sum of its proper divisors (29951322601432).

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

21122230322000 is a wasteful number, since it uses less digits than its factorization.

21122230322000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561115184 (or 10561115168 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21122230322000 its reverse (22303222112), we get a palindrome (21144533544112).

The spelling of 21122230322000 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred thirty million, three hundred twenty-two thousand".