120011021100021 has 24 divisors (see below), whose sum is σ = 175464266331904. Its totient is φ = 72871967255040.

The previous prime is 120011021099989. The next prime is 120011021100031. The reversal of 120011021100021 is 120001120110021.

120011021100021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 120011021100021 - 2⁵ = 120011021099989 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 (120011021100031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2232570160 + ... + 2232623913.

Almost surely, 2^{120011021100021} is an apocalyptic number.

It is an amenable number.

120011021100021 is a deficient number, since it is larger than the sum of its proper divisors (55453245231883).

120011021100021 is a wasteful number, since it uses less digits than its factorization.

120011021100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465194141 (or 4465194124 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120011021100021 its reverse (120001120110021), we get a palindrome (240012141210042).

The spelling of 120011021100021 in words is "one hundred twenty trillion, eleven billion, twenty-one million, one hundred thousand, twenty-one".