222221211010220 has 48 divisors (see below), whose sum is σ = 481725918863616. Its totient is φ = 86019742368000.

The previous prime is 222221211010199. The next prime is 222221211010247. The reversal of 222221211010220 is 22010112122222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222221211010192 and 222221211010201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36495290 + ... + 42146750.

It is an arithmetic number, because the mean of its divisors is an integer number (10035956642992).

Almost surely, 2^{222221211010220} is an apocalyptic number.

222221211010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221211010220 is an abundant number, since it is smaller than the sum of its proper divisors (259504707853396).

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

222221211010220 is a wasteful number, since it uses less digits than its factorization.

222221211010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714922 (or 5714920 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221211010220 its reverse (22010112122222), we get a palindrome (244231323132442).

The spelling of 222221211010220 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred eleven million, ten thousand, two hundred twenty".