122231211013 has 4 divisors (see below), whose sum is σ = 123352598380. Its totient is φ = 121109823648.

The previous prime is 122231210993. The next prime is 122231211071. The reversal of 122231211013 is 310112132221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310112132221 = 25939 ⋅11955439.

It can be written as a sum of positive squares in 2 ways, for example, as 48647595844 + 73583615169 = 220562^2 + 271263^2 .

It is a cyclic number.

It is not a de Polignac number, because 122231211013 - 2¹⁷ = 122231079941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231211073) 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, 560693520 + ... + 560693737.

It is an arithmetic number, because the mean of its divisors is an integer number (30838149595).

Almost surely, 2^122231211013 is an apocalyptic number.

It is an amenable number.

122231211013 is a deficient number, since it is larger than the sum of its proper divisors (1121387367).

122231211013 is a wasteful number, since it uses less digits than its factorization.

122231211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121387366.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122231211013 its reverse (310112132221), we get a palindrome (432343343234).

It can be divided in two parts, 12223 and 1211013, that added together give a square (1223236 = 1106²).

The spelling of 122231211013 in words is "one hundred twenty-two billion, two hundred thirty-one million, two hundred eleven thousand, thirteen".