120221121212 has 24 divisors (see below), whose sum is σ = 215008663296. Its totient is φ = 58791805488.

The previous prime is 120221121197. The next prime is 120221121221. The reversal of 120221121212 is 212121122021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63203 + ... + 494405.

It is an arithmetic number, because the mean of its divisors is an integer number (8958694304).

Almost surely, 2^120221121212 is an apocalyptic number.

It is an amenable number.

120221121212 is a deficient number, since it is larger than the sum of its proper divisors (94787542084).

120221121212 is a wasteful number, since it uses less digits than its factorization.

120221121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432737 (or 432735 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120221121212 its reverse (212121122021), we get a palindrome (332342243233).

The spelling of 120221121212 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".