121222032198 has 16 divisors (see below), whose sum is σ = 242456777280. Its totient is φ = 40405225256.

The previous prime is 121222032157. The next prime is 121222032199. The reversal of 121222032198 is 891230222121.

It is a super-2 number, since 2×121222032198² (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 (121222032199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403428 + ... + 636551.

It is an arithmetic number, because the mean of its divisors is an integer number (15153548580).

Almost surely, 2^121222032198 is an apocalyptic number.

121222032198 is an abundant number, since it is smaller than the sum of its proper divisors (121234745082).

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

121222032198 is a wasteful number, since it uses less digits than its factorization.

121222032198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059411.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 121222032198 in words is "one hundred twenty-one billion, two hundred twenty-two million, thirty-two thousand, one hundred ninety-eight".