222102101021220 has 288 divisors, whose sum is σ = 802565968259328. Its totient is φ = 48656908624896.

The previous prime is 222102101021219. The next prime is 222102101021233. The reversal of 222102101021220 is 22120101201222.

It is a happy number.

222102101021220 is a `hidden beast` number, since 2 + 2 + 210 + 210 + 1 + 0 + 21 + 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 = 222102101021193 and 222102101021202.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32429407 + ... + 38676486.

Almost surely, 2^{222102101021220} is an apocalyptic number.

222102101021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102101021220 is an abundant number, since it is smaller than the sum of its proper divisors (580463867238108).

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

222102101021220 is a wasteful number, since it uses less digits than its factorization.

222102101021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71106019 (or 71106014 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222102101021220 its reverse (22120101201222), we get a palindrome (244222202222442).

The spelling of 222102101021220 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred one million, twenty-one thousand, two hundred twenty".