22274249787480 has 64 divisors (see below), whose sum is σ = 66823458543360. Its totient is φ = 5939736905088.

The previous prime is 22274249787479. The next prime is 22274249787487. The reversal of 22274249787480 is 8478794247222.

It is a super-2 number, since 2×22274249787480² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22274249787487) 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, 10971399 + ... + 12842121.

It is an arithmetic number, because the mean of its divisors is an integer number (1044116539740).

Almost surely, 2^{22274249787480} is an apocalyptic number.

22274249787480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22274249787480 is an abundant number, since it is smaller than the sum of its proper divisors (44549208755880).

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

22274249787480 is a wasteful number, since it uses less digits than its factorization.

22274249787480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969960 (or 1969956 counting only the distinct ones).

The product of its (nonzero) digits is 202309632, while the sum is 66.

The spelling of 22274249787480 in words is "twenty-two trillion, two hundred seventy-four billion, two hundred forty-nine million, seven hundred eighty-seven thousand, four hundred eighty".