21223231020334 has 16 divisors (see below), whose sum is σ = 36467096334336. Its totient is φ = 9074566791000.

The previous prime is 21223231020317. The next prime is 21223231020361. The reversal of 21223231020334 is 43302013232212.

It is a congruent number.

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, 1758630942 + ... + 1758643009.

It is an arithmetic number, because the mean of its divisors is an integer number (2279193520896).

Almost surely, 2^{21223231020334} is an apocalyptic number.

21223231020334 is a deficient number, since it is larger than the sum of its proper divisors (15243865314002).

21223231020334 is a wasteful number, since it uses less digits than its factorization.

21223231020334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517274391.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21223231020334 its reverse (43302013232212), we get a palindrome (64525244252546).

The spelling of 21223231020334 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-one million, twenty thousand, three hundred thirty-four".