120220200111021 has 4 divisors (see below), whose sum is σ = 160293600148032. Its totient is φ = 80146800074012.

The previous prime is 120220200111007. The next prime is 120220200111031. The reversal of 120220200111021 is 120111002022021.

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 120220200111021 - 2¹¹ = 120220200108973 is a prime.

It is a super-3 number, since 3×120220200111021³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220200111031) 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, 20036700018501 + ... + 20036700018506.

It is an arithmetic number, because the mean of its divisors is an integer number (40073400037008).

Almost surely, 2^{120220200111021} is an apocalyptic number.

It is an amenable number.

120220200111021 is a deficient number, since it is larger than the sum of its proper divisors (40073400037011).

120220200111021 is an equidigital number, since it uses as much as digits as its factorization.

120220200111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40073400037010.

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

Adding to 120220200111021 its reverse (120111002022021), we get a palindrome (240331202133042).

The spelling of 120220200111021 in words is "one hundred twenty trillion, two hundred twenty billion, two hundred million, one hundred eleven thousand, twenty-one".