222201112211220 has 96 divisors (see below), whose sum is σ = 625679474007168. Its totient is φ = 58919025917952.

The previous prime is 222201112211207. The next prime is 222201112211233. The reversal of 222201112211220 is 22112211102222.

222201112211220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222201112211207) and next prime (222201112211233).

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, 20256907 + ... + 29236013.

It is an arithmetic number, because the mean of its divisors is an integer number (6517494520908).

Almost surely, 2^{222201112211220} is an apocalyptic number.

222201112211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201112211220 is an abundant number, since it is smaller than the sum of its proper divisors (403478361795948).

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

222201112211220 is a wasteful number, since it uses less digits than its factorization.

222201112211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981449 (or 8981447 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222201112211220 its reverse (22112211102222), we get a palindrome (244313323313442).

The spelling of 222201112211220 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty".