121188426 has 32 divisors (see below), whose sum is σ = 254067840. Its totient is φ = 38463744.

The previous prime is 121188421. The next prime is 121188443. The reversal of 121188426 is 624881121.

It is not an unprimeable number, because it can be changed into a prime (121188421) 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, 30270 + ... + 34038.

It is an arithmetic number, because the mean of its divisors is an integer number (7939620).

Almost surely, 2^121188426 is an apocalyptic number.

121188426 is an abundant number, since it is smaller than the sum of its proper divisors (132879414).

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

121188426 is a wasteful number, since it uses less digits than its factorization.

121188426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030.

The product of its digits is 6144, while the sum is 33.

The square root of 121188426 is about 11008.5614864068. The cubic root of 121188426 is about 494.8653526232.

The spelling of 121188426 in words is "one hundred twenty-one million, one hundred eighty-eight thousand, four hundred twenty-six".