120003212012221 has 4 divisors (see below), whose sum is σ = 126319170539200. Its totient is φ = 113687253485244.

The previous prime is 120003212012207. The next prime is 120003212012227. The reversal of 120003212012221 is 122210212300021.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120003212012221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6315958526959 = 120003212012221 / (1 + 2 + 0 + 0 + 0 + 3 + 2 + 1 + 2 + 0 + 1 + 2 + 2 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120003212012227) 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, 3157979263461 + ... + 3157979263498.

It is an arithmetic number, because the mean of its divisors is an integer number (31579792634800).

Almost surely, 2^{120003212012221} is an apocalyptic number.

It is an amenable number.

120003212012221 is a deficient number, since it is larger than the sum of its proper divisors (6315958526979).

120003212012221 is an equidigital number, since it uses as much as digits as its factorization.

120003212012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315958526978.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120003212012221 its reverse (122210212300021), we get a palindrome (242213424312242).

The spelling of 120003212012221 in words is "one hundred twenty trillion, three billion, two hundred twelve million, twelve thousand, two hundred twenty-one".