121201012010 has 64 divisors (see below), whose sum is σ = 237280095360. Its totient is φ = 44306714880.

The previous prime is 121201012003. The next prime is 121201012063. The reversal of 121201012010 is 10210102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201011982 and 121201012000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25659509 + ... + 25664231.

It is an arithmetic number, because the mean of its divisors is an integer number (3707501490).

Almost surely, 2^121201012010 is an apocalyptic number.

121201012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201012010 is a deficient number, since it is larger than the sum of its proper divisors (116079083350).

121201012010 is a wasteful number, since it uses less digits than its factorization.

121201012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121201012010 its reverse (10210102121), we get a palindrome (131411114131).

The spelling of 121201012010 in words is "one hundred twenty-one billion, two hundred one million, twelve thousand, ten".