22151353444 has 24 divisors (see below), whose sum is σ = 42363056736. Its totient is φ = 10051152000.

The previous prime is 22151353409. The next prime is 22151353457. The reversal of 22151353444 is 44435315122.

It is a super-2 number, since 2×22151353444² (a number of 21 digits) contains 22 as substring.

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, 415717 + ... + 465964.

It is an arithmetic number, because the mean of its divisors is an integer number (1765127364).

Almost surely, 2^22151353444 is an apocalyptic number.

It is an amenable number.

22151353444 is a deficient number, since it is larger than the sum of its proper divisors (20211703292).

22151353444 is a wasteful number, since it uses less digits than its factorization.

22151353444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882267 (or 882265 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 22151353444 its reverse (44435315122), we get a palindrome (66586668566).

The spelling of 22151353444 in words is "twenty-two billion, one hundred fifty-one million, three hundred fifty-three thousand, four hundred forty-four".