120012112220221 has 32 divisors (see below), whose sum is σ = 140740861766400. Its totient is φ = 101328384568320.

The previous prime is 120012112220213. The next prime is 120012112220243. The reversal of 120012112220221 is 122022211210021.

It is not a de Polignac number, because 120012112220221 - 2³ = 120012112220213 is a prime.

It is a super-4 number, since 4×120012112220221⁴ (a number of 57 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012112220251) 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, 323130736 + ... + 323501926.

It is an arithmetic number, because the mean of its divisors is an integer number (4398151930200).

Almost surely, 2^{120012112220221} is an apocalyptic number.

It is an amenable number.

120012112220221 is a deficient number, since it is larger than the sum of its proper divisors (20728749546179).

120012112220221 is a wasteful number, since it uses less digits than its factorization.

120012112220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416389.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120012112220221 its reverse (122022211210021), we get a palindrome (242034323430242).

The spelling of 120012112220221 in words is "one hundred twenty trillion, twelve billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-one".