21022013322 has 32 divisors (see below), whose sum is σ = 48222543360. Its totient is φ = 6781294080.

The previous prime is 21022013321. The next prime is 21022013329. The reversal of 21022013322 is 22331022012.

It is a super-2 number, since 2×21022013322² (a number of 21 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 = 21022013295 and 21022013304.

It is not an unprimeable number, because it can be changed into a prime (21022013321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6277303 + ... + 6280650.

It is an arithmetic number, because the mean of its divisors is an integer number (1506954480).

Almost surely, 2^21022013322 is an apocalyptic number.

21022013322 is an abundant number, since it is smaller than the sum of its proper divisors (27200530038).

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

21022013322 is a wasteful number, since it uses less digits than its factorization.

21022013322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557995 (or 12557989 counting only the distinct ones).

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

Adding to 21022013322 its reverse (22331022012), we get a palindrome (43353035334).

The spelling of 21022013322 in words is "twenty-one billion, twenty-two million, thirteen thousand, three hundred twenty-two".