22220668747400 has 48 divisors (see below), whose sum is σ = 51735922664100. Its totient is φ = 8875731098880.

The previous prime is 22220668747357. The next prime is 22220668747411. The reversal of 22220668747400 is 474786602222.

It can be written as a sum of positive squares in 6 ways, for example, as 11999309856004 + 10221358891396 = 3464002^2 + 3197086^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78210347 + ... + 78493946.

Almost surely, 2^{22220668747400} is an apocalyptic number.

22220668747400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220668747400 is an abundant number, since it is smaller than the sum of its proper divisors (29515253916700).

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

22220668747400 is a wasteful number, since it uses less digits than its factorization.

22220668747400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156705018 (or 156705009 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 50.

The spelling of 22220668747400 in words is "twenty-two trillion, two hundred twenty billion, six hundred sixty-eight million, seven hundred forty-seven thousand, four hundred".