122111101212212 has 24 divisors (see below), whose sum is σ = 247867309927104. Its totient is φ = 51552234626112.

The previous prime is 122111101212187. The next prime is 122111101212223. The reversal of 122111101212212 is 212212101111221.

It is a happy number.

It is a super-2 number, since 2×122111101212212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32545600793 + ... + 32545604544.

It is an arithmetic number, because the mean of its divisors is an integer number (10327804580296).

Almost surely, 2^{122111101212212} is an apocalyptic number.

It is an amenable number.

122111101212212 is an abundant number, since it is smaller than the sum of its proper divisors (125756208714892).

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

122111101212212 is a wasteful number, since it uses less digits than its factorization.

122111101212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65091205415 (or 65091205413 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122111101212212 its reverse (212212101111221), we get a palindrome (334323202323433).

The spelling of 122111101212212 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred one million, two hundred twelve thousand, two hundred twelve".