21422422422412 has 24 divisors (see below), whose sum is σ = 43303078481040. Its totient is φ = 9164672693760.

The previous prime is 21422422422407. The next prime is 21422422422431.

21422422422412 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a nude number because it is divisible by every one of its digits.

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, 14319800337 + ... + 14319801832.

It is an arithmetic number, because the mean of its divisors is an integer number (1804294936710).

Almost surely, 2^{21422422422412} is an apocalyptic number.

21422422422412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21422422422412 is an abundant number, since it is smaller than the sum of its proper divisors (21880656058628).

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

21422422422412 is a wasteful number, since it uses less digits than its factorization.

21422422422412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28639602201 (or 28639602199 counting only the distinct ones).

The product of its digits is 65536, while the sum is 34.

It can be divided in two parts, 2142242 and 2422412, that added together give a palindrome (4564654).

The spelling of 21422422422412 in words is "twenty-one trillion, four hundred twenty-two billion, four hundred twenty-two million, four hundred twenty-two thousand, four hundred twelve".