120221212101 has 4 divisors (see below), whose sum is σ = 160294949472. Its totient is φ = 80147474732.

The previous prime is 120221212093. The next prime is 120221212141. The reversal of 120221212101 is 101212122021.

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: 101212122021 = 3 ⋅33737374007.

It is a cyclic number.

It is not a de Polignac number, because 120221212101 - 2³ = 120221212093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221212141) 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, 20036868681 + ... + 20036868686.

It is an arithmetic number, because the mean of its divisors is an integer number (40073737368).

Almost surely, 2^120221212101 is an apocalyptic number.

It is an amenable number.

120221212101 is a deficient number, since it is larger than the sum of its proper divisors (40073737371).

120221212101 is an equidigital number, since it uses as much as digits as its factorization.

120221212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40073737370.

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

Adding to 120221212101 its reverse (101212122021), we get a palindrome (221433334122).

The spelling of 120221212101 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred twelve thousand, one hundred one".