121222101112212 has 48 divisors (see below), whose sum is σ = 282893509926720. Its totient is φ = 40401376075008.

The previous prime is 121222101112183. The next prime is 121222101112247. The reversal of 121222101112212 is 212211101222121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3263992339 + ... + 3264029477.

It is an arithmetic number, because the mean of its divisors is an integer number (5893614790140).

Almost surely, 2^{121222101112212} is an apocalyptic number.

121222101112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121222101112212 is an abundant number, since it is smaller than the sum of its proper divisors (161671408814508).

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

121222101112212 is a wasteful number, since it uses less digits than its factorization.

121222101112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70152 (or 70150 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121222101112212 its reverse (212211101222121), we get a palindrome (333433202334333).

The spelling of 121222101112212 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, one hundred twelve thousand, two hundred twelve".