21322401034 has 32 divisors (see below), whose sum is σ = 35351515584. Its totient is φ = 9564401280.

The previous prime is 21322401019. The next prime is 21322401071. The reversal of 21322401034 is 43010422312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21322400996 and 21322401014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734052 + ... + 1746304.

It is an arithmetic number, because the mean of its divisors is an integer number (1104734862).

Almost surely, 2^21322401034 is an apocalyptic number.

21322401034 is a deficient number, since it is larger than the sum of its proper divisors (14029114550).

21322401034 is a wasteful number, since it uses less digits than its factorization.

21322401034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13302.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21322401034 its reverse (43010422312), we get a palindrome (64332823346).

The spelling of 21322401034 in words is "twenty-one billion, three hundred twenty-two million, four hundred one thousand, thirty-four".