22100201222220 has 144 divisors (see below), whose sum is σ = 76980605345280. Its totient is φ = 5075644291200.

The previous prime is 22100201222189. The next prime is 22100201222243. The reversal of 22100201222220 is 2222210200122.

22100201222220 is a `hidden beast` number, since 2 + 21 + 0 + 0 + 201 + 222 + 220 = 666.

It is a super-2 number, since 2×22100201222220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22100201222193 and 22100201222202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293691796 + ... + 293767035.

It is an arithmetic number, because the mean of its divisors is an integer number (534587537120).

Almost surely, 2^{22100201222220} is an apocalyptic number.

22100201222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100201222220 is an abundant number, since it is smaller than the sum of its proper divisors (54880404123060).

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

22100201222220 is a wasteful number, since it uses less digits than its factorization.

22100201222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587458876 (or 587458871 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22100201222220 its reverse (2222210200122), we get a palindrome (24322411422342).

The spelling of 22100201222220 in words is "twenty-two trillion, one hundred billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty".