120101020221 has 32 divisors (see below), whose sum is σ = 201111097600. Its totient is φ = 63349981632.

The previous prime is 120101020219. The next prime is 120101020243. The reversal of 120101020221 is 122020101021.

It is not a de Polignac number, because 120101020221 - 2¹ = 120101020219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120101020197 and 120101020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101020261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4475710 + ... + 4502463.

It is an arithmetic number, because the mean of its divisors is an integer number (6284721800).

Almost surely, 2^120101020221 is an apocalyptic number.

It is an amenable number.

120101020221 is a deficient number, since it is larger than the sum of its proper divisors (81010077379).

120101020221 is an equidigital number, since it uses as much as digits as its factorization.

120101020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978210 (or 8978196 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120101020221 its reverse (122020101021), we get a palindrome (242121121242).

The spelling of 120101020221 in words is "one hundred twenty billion, one hundred one million, twenty thousand, two hundred twenty-one".