120101020201021 has 4 divisors (see below), whose sum is σ = 120102997005532. Its totient is φ = 120099043396512.

The previous prime is 120101020200961. The next prime is 120101020201033. The reversal of 120101020201021 is 120102020101021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92898484684996 + 27202535516025 = 9638386^2 + 5215605^2 .

It is a cyclic number.

It is not a de Polignac number, because 120101020201021 - 2⁷ = 120101020200893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120101020200992 and 120101020201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101020201051) 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, 988311120 + ... + 988432633.

It is an arithmetic number, because the mean of its divisors is an integer number (30025749251383).

Almost surely, 2^{120101020201021} is an apocalyptic number.

It is an amenable number.

120101020201021 is a deficient number, since it is larger than the sum of its proper divisors (1976804511).

120101020201021 is an equidigital number, since it uses as much as digits as its factorization.

120101020201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976804510.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120101020201021 its reverse (120102020101021), we get a palindrome (240203040302042).

The spelling of 120101020201021 in words is "one hundred twenty trillion, one hundred one billion, twenty million, two hundred one thousand, twenty-one".