121010021010010 has 32 divisors (see below), whose sum is σ = 237622767400512. Its totient is φ = 44003071822080.

The previous prime is 121010021009987. The next prime is 121010021010013. The reversal of 121010021010010 is 10010120010121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (121010021010013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391922 + ... + 15619138.

It is an arithmetic number, because the mean of its divisors is an integer number (7425711481266).

Almost surely, 2^{121010021010010} is an apocalyptic number.

121010021010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121010021010010 is a deficient number, since it is larger than the sum of its proper divisors (116612746390502).

121010021010010 is a wasteful number, since it uses less digits than its factorization.

121010021010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304558.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121010021010010 its reverse (10010120010121), we get a palindrome (131020141020131).

The spelling of 121010021010010 in words is "one hundred twenty-one trillion, ten billion, twenty-one million, ten thousand, ten".