120102200100021 has 8 divisors (see below), whose sum is σ = 160136403961824. Its totient is φ = 80068064819120.

The previous prime is 120102200099941. The next prime is 120102200100037. The reversal of 120102200100021 is 120001002201021.

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

It is a cyclic number.

It is not a de Polignac number, because 120102200100021 - 2¹¹ = 120102200097973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102200170021) 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, 12909486 + ... + 20170751.

It is an arithmetic number, because the mean of its divisors is an integer number (20017050495228).

Almost surely, 2^{120102200100021} is an apocalyptic number.

It is an amenable number.

120102200100021 is a deficient number, since it is larger than the sum of its proper divisors (40034203861803).

120102200100021 is a wasteful number, since it uses less digits than its factorization.

120102200100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34290451.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120102200100021 its reverse (120001002201021), we get a palindrome (240103202301042).

The spelling of 120102200100021 in words is "one hundred twenty trillion, one hundred two billion, two hundred million, one hundred thousand, twenty-one".