122221210213331 has 4 divisors (see below), whose sum is σ = 126163829897664. Its totient is φ = 118278590529000.

The previous prime is 122221210213309. The next prime is 122221210213367. The reversal of 122221210213331 is 133312012122221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221210213331 is a prime.

It is a super-2 number, since 2×122221210213331² (a number of 29 digits) contains 22 as substring.

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 122221210213331.

It is not an unprimeable number, because it can be changed into a prime (122221210213831) 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, 1971309842120 + ... + 1971309842181.

It is an arithmetic number, because the mean of its divisors is an integer number (31540957474416).

Almost surely, 2^{122221210213331} is an apocalyptic number.

122221210213331 is a deficient number, since it is larger than the sum of its proper divisors (3942619684333).

122221210213331 is an equidigital number, since it uses as much as digits as its factorization.

122221210213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942619684332.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 122221210213331 its reverse (133312012122221), we get a palindrome (255533222335552).

The spelling of 122221210213331 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred ten million, two hundred thirteen thousand, three hundred thirty-one".