121222213323331 has 4 divisors (see below), whose sum is σ = 122682721917672. Its totient is φ = 119761704728992.

The previous prime is 121222213323317. The next prime is 121222213323347. The reversal of 121222213323331 is 133323312222121.

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

It is a cyclic number.

It is not a de Polignac number, because 121222213323331 - 2²⁹ = 121221676452419 is a prime.

It is a super-2 number, since 2×121222213323331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121222213323293 and 121222213323302.

It is not an unprimeable number, because it can be changed into a prime (121222213323361) 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, 730254297046 + ... + 730254297211.

It is an arithmetic number, because the mean of its divisors is an integer number (30670680479418).

Almost surely, 2^{121222213323331} is an apocalyptic number.

121222213323331 is a deficient number, since it is larger than the sum of its proper divisors (1460508594341).

121222213323331 is an equidigital number, since it uses as much as digits as its factorization.

121222213323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460508594340.

The product of its digits is 15552, while the sum is 31.

Adding to 121222213323331 its reverse (133323312222121), we get a palindrome (254545525545452).

The spelling of 121222213323331 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred thirteen million, three hundred twenty-three thousand, three hundred thirty-one".