121000122200 has 48 divisors (see below), whose sum is σ = 282446219160. Its totient is φ = 48207200000.

The previous prime is 121000122167. The next prime is 121000122239. The reversal of 121000122200 is 2221000121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1154981 + ... + 1255380.

Almost surely, 2^121000122200 is an apocalyptic number.

121000122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000122200 is an abundant number, since it is smaller than the sum of its proper divisors (161446096960).

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

121000122200 is a wasteful number, since it uses less digits than its factorization.

121000122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410628 (or 2410619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121000122200 its reverse (2221000121), we get a palindrome (123221122321).

The spelling of 121000122200 in words is "one hundred twenty-one billion, one hundred twenty-two thousand, two hundred".