120220201021 has 4 divisors (see below), whose sum is σ = 120223601344. Its totient is φ = 120216800700.

The previous prime is 120220201009. The next prime is 120220201043. The reversal of 120220201021 is 120102022021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120102022021 = 353 ⋅340232357.

It is a cyclic number.

It is not a de Polignac number, because 120220201021 - 2²⁷ = 120085983293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120220200992 and 120220201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220201091) 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, 1646565 + ... + 1718026.

It is an arithmetic number, because the mean of its divisors is an integer number (30055900336).

Almost surely, 2^120220201021 is an apocalyptic number.

It is an amenable number.

120220201021 is a deficient number, since it is larger than the sum of its proper divisors (3400323).

120220201021 is an equidigital number, since it uses as much as digits as its factorization.

120220201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400322.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120220201021 its reverse (120102022021), we get a palindrome (240322223042).

The spelling of 120220201021 in words is "one hundred twenty billion, two hundred twenty million, two hundred one thousand, twenty-one".