22220116023400 has 24 divisors (see below), whose sum is σ = 51661769754870. Its totient is φ = 8888046409280.

The previous prime is 22220116023349. The next prime is 22220116023407. The reversal of 22220116023400 is 432061102222.

It can be written as a sum of positive squares in 3 ways, for example, as 21059967304996 + 1160148718404 = 4589114^2 + 1077102^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22220116023407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55550289859 + ... + 55550290258.

Almost surely, 2^{22220116023400} is an apocalyptic number.

22220116023400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220116023400 is an abundant number, since it is smaller than the sum of its proper divisors (29441653731470).

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

22220116023400 is a wasteful number, since it uses less digits than its factorization.

22220116023400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111100580133 (or 111100580124 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22220116023400 its reverse (432061102222), we get a palindrome (22652177125622).

The spelling of 22220116023400 in words is "twenty-two trillion, two hundred twenty billion, one hundred sixteen million, twenty-three thousand, four hundred".