122221211213 has 8 divisors (see below), whose sum is σ = 128911740000. Its totient is φ = 115556465808.

The previous prime is 122221211159. The next prime is 122221211237. The reversal of 122221211213 is 312112122221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122221211213 - 2¹² = 122221207117 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 (122221211263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6436106 + ... + 6455067.

It is an arithmetic number, because the mean of its divisors is an integer number (16113967500).

Almost surely, 2^122221211213 is an apocalyptic number.

It is an amenable number.

122221211213 is a deficient number, since it is larger than the sum of its proper divisors (6690528787).

122221211213 is a wasteful number, since it uses less digits than its factorization.

122221211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891691.

The product of its digits is 192, while the sum is 20.

Adding to 122221211213 its reverse (312112122221), we get a palindrome (434333333434).

The spelling of 122221211213 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred thirteen".