21223004012334 has 40 divisors (see below), whose sum is σ = 47817985983768. Its totient is φ = 7035249939120.

The previous prime is 21223004012267. The next prime is 21223004012351. The reversal of 21223004012334 is 43321040032212.

21223004012334 is a `hidden beast` number, since 2 + 1 + 2 + 23 + 0 + 0 + 401 + 233 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21223004012298 and 21223004012307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 361866252 + ... + 361924895.

Almost surely, 2^{21223004012334} is an apocalyptic number.

21223004012334 is an abundant number, since it is smaller than the sum of its proper divisors (26594981971434).

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

21223004012334 is a wasteful number, since it uses less digits than its factorization.

21223004012334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723791342 (or 723791333 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21223004012334 its reverse (43321040032212), we get a palindrome (64544044044546).

The spelling of 21223004012334 in words is "twenty-one trillion, two hundred twenty-three billion, four million, twelve thousand, three hundred thirty-four".