121222200012 has 96 divisors (see below), whose sum is σ = 294693611520. Its totient is φ = 38749052160.

The previous prime is 121222200007. The next prime is 121222200053. The reversal of 121222200012 is 210002222121.

It is a junction number, because it is equal to n+sod(n) for n = 121222199964 and 121222200000.

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, 22130218 + ... + 22135694.

It is an arithmetic number, because the mean of its divisors is an integer number (3069725120).

Almost surely, 2^121222200012 is an apocalyptic number.

121222200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121222200012 is an abundant number, since it is smaller than the sum of its proper divisors (173471411508).

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

121222200012 is a wasteful number, since it uses less digits than its factorization.

121222200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231 (or 6229 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121222200012 its reverse (210002222121), we get a palindrome (331224422133).

The spelling of 121222200012 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred thousand, twelve".