121420610 has 32 divisors (see below), whose sum is σ = 221681664. Its totient is φ = 47880000.

The previous prime is 121420603. The next prime is 121420661. The reversal of 121420610 is 16024121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288200 + ... + 288620.

It is an arithmetic number, because the mean of its divisors is an integer number (6927552).

Almost surely, 2^121420610 is an apocalyptic number.

121420610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121420610 is a deficient number, since it is larger than the sum of its proper divisors (100261054).

121420610 is a wasteful number, since it uses less digits than its factorization.

121420610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121420610 is about 11019.1020505303. The cubic root of 121420610 is about 495.1811872846.

Adding to 121420610 its reverse (16024121), we get a palindrome (137444731).

The spelling of 121420610 in words is "one hundred twenty-one million, four hundred twenty thousand, six hundred ten".