121250388 has 96 divisors (see below), whose sum is σ = 341397504. Its totient is φ = 32744448.

The previous prime is 121250387. The next prime is 121250413. The reversal of 121250388 is 883052121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121250387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187081 + ... + 187727.

It is an arithmetic number, because the mean of its divisors is an integer number (3556224).

Almost surely, 2^121250388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121250388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170698752).

121250388 is an abundant number, since it is smaller than the sum of its proper divisors (220147116).

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

121250388 is a wasteful number, since it uses less digits than its factorization.

121250388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 121250388 is about 11011.3753909310. The cubic root of 121250388 is about 494.9496775698.

The spelling of 121250388 in words is "one hundred twenty-one million, two hundred fifty thousand, three hundred eighty-eight".