121154222 has 32 divisors (see below), whose sum is σ = 219283200. Its totient is φ = 49042368.

The previous prime is 121154197. The next prime is 121154227. The reversal of 121154222 is 222451121.

It is a junction number, because it is equal to n+sod(n) for n = 121154194 and 121154203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121154227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149354 + ... + 150162.

It is an arithmetic number, because the mean of its divisors is an integer number (6852600).

Almost surely, 2^121154222 is an apocalyptic number.

121154222 is a deficient number, since it is larger than the sum of its proper divisors (98128978).

121154222 is a wasteful number, since it uses less digits than its factorization.

121154222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its digits is 320, while the sum is 20.

The square root of 121154222 is about 11007.0078586326. The cubic root of 121154222 is about 494.8187916114.

The spelling of 121154222 in words is "one hundred twenty-one million, one hundred fifty-four thousand, two hundred twenty-two".