120110111220021 has 8 divisors (see below), whose sum is σ = 172465800726240. Its totient is φ = 73913914596912.

The previous prime is 120110111219947. The next prime is 120110111220023. The reversal of 120110111220021 is 120022111011021.

It is a happy number.

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

It is not a de Polignac number, because 120110111220021 - 2²¹ = 120110109122869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110111220023) 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, 1539873220731 + ... + 1539873220808.

It is an arithmetic number, because the mean of its divisors is an integer number (21558225090780).

Almost surely, 2^{120110111220021} is an apocalyptic number.

It is an amenable number.

120110111220021 is a deficient number, since it is larger than the sum of its proper divisors (52355689506219).

120110111220021 is a wasteful number, since it uses less digits than its factorization.

120110111220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079746441555.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120110111220021 its reverse (120022111011021), we get a palindrome (240132222231042).

The spelling of 120110111220021 in words is "one hundred twenty trillion, one hundred ten billion, one hundred eleven million, two hundred twenty thousand, twenty-one".