121021233194 has 8 divisors (see below), whose sum is σ = 181694370468. Its totient is φ = 60456443040.

The previous prime is 121021233161. The next prime is 121021233209. The reversal of 121021233194 is 491332120121.

It can be written as a sum of positive squares in 2 ways, for example, as 118001181169 + 3020052025 = 343513^2 + 54955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121021233194² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27083987 + ... + 27088454.

Almost surely, 2^121021233194 is an apocalyptic number.

121021233194 is a deficient number, since it is larger than the sum of its proper divisors (60673137274).

121021233194 is a wasteful number, since it uses less digits than its factorization.

121021233194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54173560.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 121021233194 in words is "one hundred twenty-one billion, twenty-one million, two hundred thirty-three thousand, one hundred ninety-four".