121222312213200 has 120 divisors (see below), whose sum is σ = 423616880180256. Its totient is φ = 29387227200000.

The previous prime is 121222312213193. The next prime is 121222312213201. The reversal of 121222312213200 is 2312213222121.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222312213201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4591741051 + ... + 4591767450.

Almost surely, 2^{121222312213200} is an apocalyptic number.

121222312213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121222312213200 is an abundant number, since it is smaller than the sum of its proper divisors (302394567967056).

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

121222312213200 is a wasteful number, since it uses less digits than its factorization.

121222312213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9183508533 (or 9183508522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121222312213200 its reverse (2312213222121), we get a palindrome (123534525435321).

The spelling of 121222312213200 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, three hundred twelve million, two hundred thirteen thousand, two hundred".