121132770 has 32 divisors (see below), whose sum is σ = 317148480. Its totient is φ = 29365440.

The previous prime is 121132757. The next prime is 121132777. The reversal of 121132770 is 77231121.

It is a self number, because there is not a number n which added to its sum of digits gives 121132770.

It is not an unprimeable number, because it can be changed into a prime (121132777) 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, 183205 + ... + 183864.

It is an arithmetic number, because the mean of its divisors is an integer number (9910890).

Almost surely, 2^121132770 is an apocalyptic number.

121132770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121132770 is an abundant number, since it is smaller than the sum of its proper divisors (196015710).

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

121132770 is a wasteful number, since it uses less digits than its factorization.

121132770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367090.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 121132770 is about 11006.0333453974. The cubic root of 121132770 is about 494.7895850924.

Adding to 121132770 its reverse (77231121), we get a palindrome (198363891).

The spelling of 121132770 in words is "one hundred twenty-one million, one hundred thirty-two thousand, seven hundred seventy".