222012111100220 has 24 divisors (see below), whose sum is σ = 532829066640864. Its totient is φ = 76118438091456.

The previous prime is 222012111100187. The next prime is 222012111100229. The reversal of 222012111100220 is 22001111210222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012111100229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 792900396647 + ... + 792900396926.

It is an arithmetic number, because the mean of its divisors is an integer number (22201211110036).

Almost surely, 2^{222012111100220} is an apocalyptic number.

222012111100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012111100220 is an abundant number, since it is smaller than the sum of its proper divisors (310816955540644).

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

222012111100220 is a wasteful number, since it uses less digits than its factorization.

222012111100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585800793589 (or 1585800793587 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222012111100220 its reverse (22001111210222), we get a palindrome (244013222310442).

The spelling of 222012111100220 in words is "two hundred twenty-two trillion, twelve billion, one hundred eleven million, one hundred thousand, two hundred twenty".