121711470 has 32 divisors (see below), whose sum is σ = 296900640. Its totient is φ = 31923840.

The previous prime is 121711453. The next prime is 121711477. The reversal of 121711470 is 74117121.

It is a self number, because there is not a number n which added to its sum of digits gives 121711470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121711477) 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, 31425 + ... + 35084.

It is an arithmetic number, because the mean of its divisors is an integer number (9278145).

Almost surely, 2^121711470 is an apocalyptic number.

121711470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121711470 is an abundant number, since it is smaller than the sum of its proper divisors (175189170).

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

121711470 is a wasteful number, since it uses less digits than its factorization.

121711470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66580.

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 121711470 is about 11032.2921462405. The cubic root of 121711470 is about 495.5762699851.

Adding to 121711470 its reverse (74117121), we get a palindrome (195828591).

The spelling of 121711470 in words is "one hundred twenty-one million, seven hundred eleven thousand, four hundred seventy".