120021221110 has 32 divisors (see below), whose sum is σ = 261424376640. Its totient is φ = 38729536512.

The previous prime is 120021221039. The next prime is 120021221123. The reversal of 120021221110 is 11122120021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50427895 + ... + 50430274.

It is an arithmetic number, because the mean of its divisors is an integer number (8169511770).

Almost surely, 2^120021221110 is an apocalyptic number.

120021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021221110 is an abundant number, since it is smaller than the sum of its proper divisors (141403155530).

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

120021221110 is a wasteful number, since it uses less digits than its factorization.

120021221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100858200.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120021221110 its reverse (11122120021), we get a palindrome (131143341131).

The spelling of 120021221110 in words is "one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".