120021222021 has 8 divisors (see below), whose sum is σ = 160037812224. Its totient is φ = 80009389920.

The previous prime is 120021222001. The next prime is 120021222043. The reversal of 120021222021 is 120222120021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120021222021 - 2¹⁹ = 120020697733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130245 + ... + 1231866.

It is an arithmetic number, because the mean of its divisors is an integer number (20004726528).

Almost surely, 2^120021222021 is an apocalyptic number.

It is an amenable number.

120021222021 is a deficient number, since it is larger than the sum of its proper divisors (40016590203).

120021222021 is a wasteful number, since it uses less digits than its factorization.

120021222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379051.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120021222021 its reverse (120222120021), we get a palindrome (240243342042).

The spelling of 120021222021 in words is "one hundred twenty billion, twenty-one million, two hundred twenty-two thousand, twenty-one".