22021033100220 has 432 divisors, whose sum is σ = 84777942858336. Its totient is φ = 4575191040000.

The previous prime is 22021033100179. The next prime is 22021033100281. The reversal of 22021033100220 is 2200133012022.

22021033100220 is a `hidden beast` number, since 220 + 210 + 3 + 3 + 10 + 0 + 220 = 666.

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 = 22021033100193 and 22021033100202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1397177140 + ... + 1397192900.

It is an arithmetic number, because the mean of its divisors is an integer number (196245238098).

Almost surely, 2^{22021033100220} is an apocalyptic number.

22021033100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021033100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42388971429168).

22021033100220 is an abundant number, since it is smaller than the sum of its proper divisors (62756909758116).

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

22021033100220 is a wasteful number, since it uses less digits than its factorization.

22021033100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30202 (or 30190 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22021033100220 its reverse (2200133012022), we get a palindrome (24221166112242).

The spelling of 22021033100220 in words is "twenty-two trillion, twenty-one billion, thirty-three million, one hundred thousand, two hundred twenty".