120121020010 has 8 divisors (see below), whose sum is σ = 216217836036. Its totient is φ = 48048408000.

The previous prime is 120121019987. The next prime is 120121020017. The reversal of 120121020010 is 10020121021.

It can be written as a sum of positive squares in 2 ways, for example, as 109979120161 + 10141899849 = 331631^2 + 100707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 12012102001 = 120121020010 / (1 + 2 + 0 + 1 + 2 + 1 + 0 + 2 + 0 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (120121020017) 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 3 ways as a sum of consecutive naturals, for example, 6006050991 + ... + 6006051010.

Almost surely, 2^120121020010 is an apocalyptic number.

120121020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121020010 is a deficient number, since it is larger than the sum of its proper divisors (96096816026).

120121020010 is a wasteful number, since it uses less digits than its factorization.

120121020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12012102008.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120121020010 its reverse (10020121021), we get a palindrome (130141141031).

The spelling of 120121020010 in words is "one hundred twenty billion, one hundred twenty-one million, twenty thousand, ten".