121322322200 has 48 divisors (see below), whose sum is σ = 283306272000. Its totient is φ = 48316993920.

The previous prime is 121322322167. The next prime is 121322322203. The reversal of 121322322200 is 2223223121.

It is a happy number.

It is a super-2 number, since 2×121322322200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322322203) 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, 1278680 + ... + 1370279.

It is an arithmetic number, because the mean of its divisors is an integer number (5902214000).

Almost surely, 2^121322322200 is an apocalyptic number.

121322322200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121322322200 is an abundant number, since it is smaller than the sum of its proper divisors (161983949800).

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

121322322200 is a wasteful number, since it uses less digits than its factorization.

121322322200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649204 (or 2649195 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 121322322200 its reverse (2223223121), we get a palindrome (123545545321).

It can be divided in two parts, 12132 and 2322200, that added together give a palindrome (2334332).

The spelling of 121322322200 in words is "one hundred twenty-one billion, three hundred twenty-two million, three hundred twenty-two thousand, two hundred".