120202011022021 has 4 divisors (see below), whose sum is σ = 120216819704652. Its totient is φ = 120187202339392.

The previous prime is 120202011022007. The next prime is 120202011022063. The reversal of 120202011022021 is 120220110202021.

It is a happy number.

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 45507234269025 + 74694776752996 = 6745905^2 + 8642614^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202011022021 - 2¹¹ = 120202011019973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202011021986 and 120202011022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202011022721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7404329140 + ... + 7404345373.

It is an arithmetic number, because the mean of its divisors is an integer number (30054204926163).

Almost surely, 2^{120202011022021} is an apocalyptic number.

It is an amenable number.

120202011022021 is a deficient number, since it is larger than the sum of its proper divisors (14808682631).

120202011022021 is an equidigital number, since it uses as much as digits as its factorization.

120202011022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14808682630.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120202011022021 its reverse (120220110202021), we get a palindrome (240422121224042).

The spelling of 120202011022021 in words is "one hundred twenty trillion, two hundred two billion, eleven million, twenty-two thousand, twenty-one".