121222121102112 has 24 divisors (see below), whose sum is σ = 318208067893296. Its totient is φ = 40407373700672.

The previous prime is 121222121102053. The next prime is 121222121102239. The reversal of 121222121102112 is 211201121222121.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631365213978 + ... + 631365214169.

It is an arithmetic number, because the mean of its divisors is an integer number (13258669495554).

Almost surely, 2^{121222121102112} is an apocalyptic number.

121222121102112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121222121102112 is an abundant number, since it is smaller than the sum of its proper divisors (196985946791184).

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

121222121102112 is a wasteful number, since it uses less digits than its factorization.

121222121102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262730428160 (or 1262730428152 counting only the distinct ones).

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

Adding to 121222121102112 its reverse (211201121222121), we get a palindrome (332423242324233).

The spelling of 121222121102112 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, one hundred twelve".