120020021212101 has 4 divisors (see below), whose sum is σ = 160026694949472. Its totient is φ = 80013347474732.

The previous prime is 120020021212093. The next prime is 120020021212111. The reversal of 120020021212101 is 101212120020021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120020021212101 - 2³ = 120020021212093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020021212111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20003336868681 + ... + 20003336868686.

It is an arithmetic number, because the mean of its divisors is an integer number (40006673737368).

Almost surely, 2^{120020021212101} is an apocalyptic number.

It is an amenable number.

120020021212101 is a deficient number, since it is larger than the sum of its proper divisors (40006673737371).

120020021212101 is an equidigital number, since it uses as much as digits as its factorization.

120020021212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40006673737370.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120020021212101 its reverse (101212120020021), we get a palindrome (221232141232122).

The spelling of 120020021212101 in words is "one hundred twenty trillion, twenty billion, twenty-one million, two hundred twelve thousand, one hundred one".