222010210211220 has 144 divisors (see below), whose sum is σ = 674380485808848. Its totient is φ = 59119263866880.

The previous prime is 222010210211201. The next prime is 222010210211263. The reversal of 222010210211220 is 22112012010222.

It is a happy number.

222010210211220 is a `hidden beast` number, since 2 + 2 + 20 + 1 + 0 + 210 + 211 + 220 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 39425279364 + 221970784931856 = 198558^2 + 14898684^2 .

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 = 222010210211193 and 222010210211202.

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, 1541911872 + ... + 1542055848.

It is an arithmetic number, because the mean of its divisors is an integer number (4683197818117).

Almost surely, 2^{222010210211220} is an apocalyptic number.

222010210211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222010210211220 is an abundant number, since it is smaller than the sum of its proper divisors (452370275597628).

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

222010210211220 is a wasteful number, since it uses less digits than its factorization.

222010210211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156010 (or 156005 counting only the distinct ones).

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

Adding to 222010210211220 its reverse (22112012010222), we get a palindrome (244122222221442).

The spelling of 222010210211220 in words is "two hundred twenty-two trillion, ten billion, two hundred ten million, two hundred eleven thousand, two hundred twenty".