1200120110101 has 8 divisors (see below), whose sum is σ = 1309611744000. Its totient is φ = 1090693443840.

The previous prime is 1200120110039. The next prime is 1200120110107. The reversal of 1200120110101 is 1010110210021.

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

It is not a de Polignac number, because 1200120110101 - 2²¹ = 1200118012949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200120110107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16203276 + ... + 16277173.

It is an arithmetic number, because the mean of its divisors is an integer number (163701468000).

Almost surely, 2^{1200120110101} is an apocalyptic number.

1200120110101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200120110101 is a deficient number, since it is larger than the sum of its proper divisors (109491633899).

1200120110101 is a wasteful number, since it uses less digits than its factorization.

1200120110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32483819.

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

Adding to 1200120110101 its reverse (1010110210021), we get a palindrome (2210230320122).

It can be divided in two parts, 12001 and 20110101, that added together give a palindrome (20122102).

The spelling of 1200120110101 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred ten thousand, one hundred one".