221020102222200 has 72 divisors (see below), whose sum is σ = 742259176635600. Its totient is φ = 58938693925440.

The previous prime is 221020102222097. The next prime is 221020102222219. The reversal of 221020102222200 is 2222201020122.

221020102222200 is a `hidden beast` number, since 2 + 21 + 0 + 201 + 0 + 222 + 220 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61394471040 + ... + 61394474639.

It is an arithmetic number, because the mean of its divisors is an integer number (10309155231050).

Almost surely, 2^{221020102222200} is an apocalyptic number.

221020102222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020102222200 is an abundant number, since it is smaller than the sum of its proper divisors (521239074413400).

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

221020102222200 is a wasteful number, since it uses less digits than its factorization.

221020102222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122788945701 (or 122788945689 counting only the distinct ones).

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

Adding to 221020102222200 its reverse (2222201020122), we get a palindrome (223242303242322).

The spelling of 221020102222200 in words is "two hundred twenty-one trillion, twenty billion, one hundred two million, two hundred twenty-two thousand, two hundred".