121111210010 has 64 divisors (see below), whose sum is σ = 254107736064. Its totient is φ = 40698028800.

The previous prime is 121111210001. The next prime is 121111210013. The reversal of 121111210010 is 10012111121.

121111210010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121111209973 and 121111210000.

It is not an unprimeable number, because it can be changed into a prime (121111210013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3660140 + ... + 3693080.

It is an arithmetic number, because the mean of its divisors is an integer number (3970433376).

Almost surely, 2^121111210010 is an apocalyptic number.

121111210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121111210010 is an abundant number, since it is smaller than the sum of its proper divisors (132996526054).

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

121111210010 is a wasteful number, since it uses less digits than its factorization.

121111210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33999.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121111210010 its reverse (10012111121), we get a palindrome (131123321131).

The spelling of 121111210010 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, ten".