222112120012021 has 8 divisors (see below), whose sum is σ = 227529952610688. Its totient is φ = 216694309500000.

The previous prime is 222112120011989. The next prime is 222112120012037. The reversal of 222112120012021 is 120210021211222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222112120012021 - 2⁵ = 222112120011989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222112120012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112120019021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15831396 + ... + 26360146.

It is an arithmetic number, because the mean of its divisors is an integer number (28441244076336).

Almost surely, 2^{222112120012021} is an apocalyptic number.

It is an amenable number.

222112120012021 is a deficient number, since it is larger than the sum of its proper divisors (5417832598667).

222112120012021 is a wasteful number, since it uses less digits than its factorization.

222112120012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043323.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222112120012021 its reverse (120210021211222), we get a palindrome (342322141223243).

The spelling of 222112120012021 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, twelve thousand, twenty-one".