122311401212 has 96 divisors (see below), whose sum is σ = 288407207424. Its totient is φ = 43832275200.

The previous prime is 122311401133. The next prime is 122311401221. The reversal of 122311401212 is 212104113221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079162 + ... + 1187102.

It is an arithmetic number, because the mean of its divisors is an integer number (3004241744).

Almost surely, 2^122311401212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122311401212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144203603712).

122311401212 is an abundant number, since it is smaller than the sum of its proper divisors (166095806212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122311401212 is a wasteful number, since it uses less digits than its factorization.

122311401212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108259 (or 108257 counting only the distinct ones).

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

Adding to 122311401212 its reverse (212104113221), we get a palindrome (334415514433).

The spelling of 122311401212 in words is "one hundred twenty-two billion, three hundred eleven million, four hundred one thousand, two hundred twelve".