222012111121021 has 8 divisors (see below), whose sum is σ = 240162118138880. Its totient is φ = 204015268719792.

The previous prime is 222012111120973. The next prime is 222012111121051. The reversal of 222012111121021 is 120121111210222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222012111121021 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 222012111121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012111121051) 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, 38291151141 + ... + 38291156938.

It is an arithmetic number, because the mean of its divisors is an integer number (30020264767360).

Almost surely, 2^{222012111121021} is an apocalyptic number.

It is an amenable number.

222012111121021 is a deficient number, since it is larger than the sum of its proper divisors (18150007017859).

222012111121021 is a wasteful number, since it uses less digits than its factorization.

222012111121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76582308315.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222012111121021 its reverse (120121111210222), we get a palindrome (342133222331243).

The spelling of 222012111121021 in words is "two hundred twenty-two trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, twenty-one".