121425143210 has 16 divisors (see below), whose sum is σ = 249788866176. Its totient is φ = 41631477648.

The previous prime is 121425143197. The next prime is 121425143237. The reversal of 121425143210 is 12341524121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121425143210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867322382 + ... + 867322521.

It is an arithmetic number, because the mean of its divisors is an integer number (15611804136).

Almost surely, 2^121425143210 is an apocalyptic number.

121425143210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121425143210 is an abundant number, since it is smaller than the sum of its proper divisors (128363722966).

121425143210 is a wasteful number, since it uses less digits than its factorization.

121425143210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734644917.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 121425143210 its reverse (12341524121), we get a palindrome (133766667331).

The spelling of 121425143210 in words is "one hundred twenty-one billion, four hundred twenty-five million, one hundred forty-three thousand, two hundred ten".