122012222221212 has 48 divisors (see below), whose sum is σ = 294513707540640. Its totient is φ = 39268108470528.

The previous prime is 122012222221181. The next prime is 122012222221213. The reversal of 122012222221212 is 212122222210221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012222221213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81319518 + ... + 82806330.

It is an arithmetic number, because the mean of its divisors is an integer number (6135702240430).

Almost surely, 2^{122012222221212} is an apocalyptic number.

122012222221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012222221212 is an abundant number, since it is smaller than the sum of its proper divisors (172501485319428).

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

122012222221212 is a wasteful number, since it uses less digits than its factorization.

122012222221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722662 (or 1722660 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 122012222221212 its reverse (212122222210221), we get a palindrome (334134444431433).

The spelling of 122012222221212 in words is "one hundred twenty-two trillion, twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".