121771350 has 120 divisors (see below), whose sum is σ = 342721368. Its totient is φ = 32054400.

The previous prime is 121771343. The next prime is 121771381. The reversal of 121771350 is 53177121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 433210 + ... + 433490.

Almost surely, 2^121771350 is an apocalyptic number.

121771350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121771350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171360684).

121771350 is an abundant number, since it is smaller than the sum of its proper divisors (220950018).

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

121771350 is a wasteful number, since it uses less digits than its factorization.

121771350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 121771350 is about 11035.0056637956. The cubic root of 121771350 is about 495.6575283957.

The spelling of 121771350 in words is "one hundred twenty-one million, seven hundred seventy-one thousand, three hundred fifty".