21013222344422 has 32 divisors (see below), whose sum is σ = 39622227162624. Its totient is φ = 8186969737320.

The previous prime is 21013222344391. The next prime is 21013222344431. The reversal of 21013222344422 is 22444322231012.

It is a super-2 number, since 2×21013222344422² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 563822258 + ... + 563859525.

It is an arithmetic number, because the mean of its divisors is an integer number (1238194598832).

Almost surely, 2^{21013222344422} is an apocalyptic number.

21013222344422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21013222344422 is a deficient number, since it is larger than the sum of its proper divisors (18609004818202).

21013222344422 is a wasteful number, since it uses less digits than its factorization.

21013222344422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127681825 (or 1127681803 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 21013222344422 its reverse (22444322231012), we get a palindrome (43457544575434).

The spelling of 21013222344422 in words is "twenty-one trillion, thirteen billion, two hundred twenty-two million, three hundred forty-four thousand, four hundred twenty-two".