222013233012121 has 4 divisors (see below), whose sum is σ = 226202161936932. Its totient is φ = 217824304087312.

The previous prime is 222013233012097. The next prime is 222013233012133. The reversal of 222013233012121 is 121210332310222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192109440726025 + 29903792286096 = 13860355^2 + 5468436^2 .

It is a cyclic number.

It is not a de Polignac number, because 222013233012121 - 2²³ = 222013224623513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222013233012721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094464462326 + ... + 2094464462431.

It is an arithmetic number, because the mean of its divisors is an integer number (56550540484233).

Almost surely, 2^{222013233012121} is an apocalyptic number.

It is an amenable number.

222013233012121 is a deficient number, since it is larger than the sum of its proper divisors (4188928924811).

222013233012121 is an equidigital number, since it uses as much as digits as its factorization.

222013233012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188928924810.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 222013233012121 its reverse (121210332310222), we get a palindrome (343223565322343).

The spelling of 222013233012121 in words is "two hundred twenty-two trillion, thirteen billion, two hundred thirty-three million, twelve thousand, one hundred twenty-one".