121211022200 has 48 divisors (see below), whose sum is σ = 281838557160. Its totient is φ = 48480464000.

The previous prime is 121211022181. The next prime is 121211022203. The reversal of 121211022200 is 2220112121.

It is a super-2 number, since 2×121211022200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211022203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4645190 + ... + 4671210.

Almost surely, 2^121211022200 is an apocalyptic number.

121211022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211022200 is an abundant number, since it is smaller than the sum of its proper divisors (160627534960).

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

121211022200 is a wasteful number, since it uses less digits than its factorization.

121211022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49328 (or 49319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121211022200 its reverse (2220112121), we get a palindrome (123431134321).

The spelling of 121211022200 in words is "one hundred twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred".