121000222101100 has 18 divisors (see below), whose sum is σ = 262570481959604. Its totient is φ = 48400088840400.

The previous prime is 121000222101023. The next prime is 121000222101107. The reversal of 121000222101100 is 1101222000121.

It is not an unprimeable number, because it can be changed into a prime (121000222101107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605001110406 + ... + 605001110605.

Almost surely, 2^{121000222101100} is an apocalyptic number.

121000222101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000222101100 is an abundant number, since it is smaller than the sum of its proper divisors (141570259858504).

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

121000222101100 is a wasteful number, since it uses less digits than its factorization.

121000222101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210002221025 (or 1210002221018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000222101100 its reverse (1101222000121), we get a palindrome (122101444101221).

The spelling of 121000222101100 in words is "one hundred twenty-one trillion, two hundred twenty-two million, one hundred one thousand, one hundred".