121245150 has 96 divisors (see below), whose sum is σ = 327666528. Its totient is φ = 29491200.

The previous prime is 121245149. The next prime is 121245151. The reversal of 121245150 is 51542121.

It is an interprime number because it is at equal distance from previous prime (121245149) and next prime (121245151).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121245151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188830 + ... + 189470.

It is an arithmetic number, because the mean of its divisors is an integer number (3413193).

Almost surely, 2^121245150 is an apocalyptic number.

121245150 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 121245150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163833264).

121245150 is an abundant number, since it is smaller than the sum of its proper divisors (206421378).

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

121245150 is a wasteful number, since it uses less digits than its factorization.

121245150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 121245150 is about 11011.1375434148. The cubic root of 121245150 is about 494.9425502146.

Adding to 121245150 its reverse (51542121), we get a palindrome (172787271).

The spelling of 121245150 in words is "one hundred twenty-one million, two hundred forty-five thousand, one hundred fifty".