22081337421 has 16 divisors (see below), whose sum is σ = 34588948800. Its totient is φ = 12353195520.

The previous prime is 22081337401. The next prime is 22081337429. The reversal of 22081337421 is 12473318022.

It is not a de Polignac number, because 22081337421 - 2⁵ = 22081337389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22081337429) 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, 25735396 + ... + 25736253.

It is an arithmetic number, because the mean of its divisors is an integer number (2161809300).

Almost surely, 2^22081337421 is an apocalyptic number.

It is an amenable number.

22081337421 is a deficient number, since it is larger than the sum of its proper divisors (12507611379).

22081337421 is a wasteful number, since it uses less digits than its factorization.

22081337421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51471676.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 22081337421 in words is "twenty-two billion, eighty-one million, three hundred thirty-seven thousand, four hundred twenty-one".