220000021221222 has 96 divisors (see below), whose sum is σ = 541493546031360. Its totient is φ = 63941545080000.

The previous prime is 220000021221203. The next prime is 220000021221263. The reversal of 220000021221222 is 222122120000022.

220000021221222 is a `hidden beast` number, since 2 + 200 + 0 + 0 + 0 + 21 + 221 + 222 = 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 = 220000021221195 and 220000021221204.

It is a congruent number.

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, 126001104 + ... + 127735187.

It is an arithmetic number, because the mean of its divisors is an integer number (5640557771160).

Almost surely, 2^{220000021221222} is an apocalyptic number.

220000021221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220000021221222 is an abundant number, since it is smaller than the sum of its proper divisors (321493524810138).

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

220000021221222 is a wasteful number, since it uses less digits than its factorization.

220000021221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253736490 (or 253736487 counting only the distinct ones).

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

Adding to 220000021221222 its reverse (222122120000022), we get a palindrome (442122141221244).

The spelling of 220000021221222 in words is "two hundred twenty trillion, twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".