222212200111020 has 72 divisors (see below), whose sum is σ = 770335627055904. Its totient is φ = 50791360025088.

The previous prime is 222212200110983. The next prime is 222212200111037. The reversal of 222212200111020 is 20111002212222.

It is a happy number.

222212200111020 is a `hidden beast` number, since 222 + 212 + 200 + 1 + 1 + 10 + 20 = 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 = 222212200110984 and 222212200111002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88179443229 + ... + 88179445748.

It is an arithmetic number, because the mean of its divisors is an integer number (10699105931332).

Almost surely, 2^{222212200111020} is an apocalyptic number.

222212200111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212200111020 is an abundant number, since it is smaller than the sum of its proper divisors (548123426944884).

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

222212200111020 is a wasteful number, since it uses less digits than its factorization.

222212200111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176358888999 (or 176358888994 counting only the distinct ones).

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

Adding to 222212200111020 its reverse (20111002212222), we get a palindrome (242323202323242).

The spelling of 222212200111020 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred million, one hundred eleven thousand, twenty".