221120120212222 has 64 divisors (see below), whose sum is σ = 413915039884800. Its totient is φ = 86069129086080.

The previous prime is 221120120212183. The next prime is 221120120212249. The reversal of 221120120212222 is 222212021021122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221120120212193 and 221120120212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733875133 + ... + 734176375.

It is an arithmetic number, because the mean of its divisors is an integer number (6467422498200).

Almost surely, 2^{221120120212222} is an apocalyptic number.

221120120212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221120120212222 is a deficient number, since it is larger than the sum of its proper divisors (192794919672578).

221120120212222 is a wasteful number, since it uses less digits than its factorization.

221120120212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305761.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221120120212222 its reverse (222212021021122), we get a palindrome (443332141233344).

The spelling of 221120120212222 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-two".