120021121011010 has 16 divisors (see below), whose sum is σ = 216126667029816. Its totient is φ = 47988748579968.

The previous prime is 120021121011007. The next prime is 120021121011031. The reversal of 120021121011010 is 10110121120021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118891349720361 + 1129771290649 = 10903731^2 + 1062907^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462452467 + ... + 2462501206.

Almost surely, 2^{120021121011010} is an apocalyptic number.

120021121011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021121011010 is a deficient number, since it is larger than the sum of its proper divisors (96105546018806).

120021121011010 is a wasteful number, since it uses less digits than its factorization.

120021121011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924956117.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120021121011010 its reverse (10110121120021), we get a palindrome (130131242131031).

The spelling of 120021121011010 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty-one million, eleven thousand, ten".