121147700 has 18 divisors (see below), whose sum is σ = 262890726. Its totient is φ = 48459040.

The previous prime is 121147699. The next prime is 121147759. The reversal of 121147700 is 7741121.

It can be written as a sum of positive squares in 3 ways, for example, as 31315216 + 89832484 = 5596^2 + 9478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605639 + ... + 605838.

Almost surely, 2^121147700 is an apocalyptic number.

121147700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121147700 is an abundant number, since it is smaller than the sum of its proper divisors (141743026).

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

121147700 is a wasteful number, since it uses less digits than its factorization.

121147700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211491 (or 1211484 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 121147700 is about 11006.7115888443. The cubic root of 121147700 is about 494.8099123884.

Adding to 121147700 its reverse (7741121), we get a palindrome (128888821).

The spelling of 121147700 in words is "one hundred twenty-one million, one hundred forty-seven thousand, seven hundred".