121113210010 has 16 divisors (see below), whose sum is σ = 234773299656. Its totient is φ = 44718723648.

The previous prime is 121113209981. The next prime is 121113210061. The reversal of 121113210010 is 10012311121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66132808569 + 54980401441 = 257163^2 + 234479^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465819909 + ... + 465820168.

Almost surely, 2^121113210010 is an apocalyptic number.

121113210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121113210010 is a deficient number, since it is larger than the sum of its proper divisors (113660089646).

121113210010 is a wasteful number, since it uses less digits than its factorization.

121113210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931640097.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121113210010 its reverse (10012311121), we get a palindrome (131125521131).

The spelling of 121113210010 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred ten thousand, ten".