222101212111121 has 64 divisors (see below), whose sum is σ = 268297907834880. Its totient is φ = 179852922961920.

The previous prime is 222101212111109. The next prime is 222101212111123. The reversal of 222101212111121 is 121111212101222.

It is a happy number.

It is not a de Polignac number, because 222101212111121 - 2¹⁴ = 222101212094737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101212111093 and 222101212111102.

It is not an unprimeable number, because it can be changed into a prime (222101212111123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1857455225 + ... + 1857574793.

It is an arithmetic number, because the mean of its divisors is an integer number (4192154809920).

Almost surely, 2^{222101212111121} is an apocalyptic number.

It is an amenable number.

222101212111121 is a deficient number, since it is larger than the sum of its proper divisors (46196695723759).

222101212111121 is a wasteful number, since it uses less digits than its factorization.

222101212111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120466.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 222101212111121 its reverse (121111212101222), we get a palindrome (343212424212343).

The spelling of 222101212111121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-one".