222220120111121 has 32 divisors (see below), whose sum is σ = 249405755719680. Its totient is φ = 196303669848000.

The previous prime is 222220120111057. The next prime is 222220120111147. The reversal of 222220120111121 is 121111021022222.

It is not a de Polignac number, because 222220120111121 - 2⁶ = 222220120111057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222220120111093 and 222220120111102.

It is not an unprimeable number, because it can be changed into a prime (222220120111151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7076960 + ... + 22237886.

It is an arithmetic number, because the mean of its divisors is an integer number (7793929866240).

Almost surely, 2^{222220120111121} is an apocalyptic number.

It is an amenable number.

222220120111121 is a deficient number, since it is larger than the sum of its proper divisors (27185635608559).

222220120111121 is a wasteful number, since it uses less digits than its factorization.

222220120111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15161285.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222220120111121 its reverse (121111021022222), we get a palindrome (343331141133343).

It can be divided in two parts, 2222201 and 20111121, that added together give a palindrome (22333322).

The spelling of 222220120111121 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty-one".