120023101221 has 16 divisors (see below), whose sum is σ = 161783054400. Its totient is φ = 79141857408.

The previous prime is 120023101201. The next prime is 120023101249. The reversal of 120023101221 is 122101320021.

It is a de Polignac number, because none of the positive numbers 2^k-120023101221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120023101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120023101201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136471 + ... + 508596.

It is an arithmetic number, because the mean of its divisors is an integer number (10111440900).

Almost surely, 2^120023101221 is an apocalyptic number.

It is an amenable number.

120023101221 is a deficient number, since it is larger than the sum of its proper divisors (41759953179).

120023101221 is a wasteful number, since it uses less digits than its factorization.

120023101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645748.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120023101221 its reverse (122101320021), we get a palindrome (242124421242).

The spelling of 120023101221 in words is "one hundred twenty billion, twenty-three million, one hundred one thousand, two hundred twenty-one".