21422661324 has 24 divisors (see below), whose sum is σ = 49990138800. Its totient is φ = 7140325824.

The previous prime is 21422661313. The next prime is 21422661341. The reversal of 21422661324 is 42316622412.

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, 106702 + ... + 232874.

It is an arithmetic number, because the mean of its divisors is an integer number (2082922450).

Almost surely, 2^21422661324 is an apocalyptic number.

It is an amenable number.

21422661324 is an abundant number, since it is smaller than the sum of its proper divisors (28567477476).

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

21422661324 is a wasteful number, since it uses less digits than its factorization.

21422661324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140329 (or 140327 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The spelling of 21422661324 in words is "twenty-one billion, four hundred twenty-two million, six hundred sixty-one thousand, three hundred twenty-four".