1222120001001 has 8 divisors (see below), whose sum is σ = 1633382341920. Its totient is φ = 812802163712.

The previous prime is 1222120000999. The next prime is 1222120001051. The reversal of 1222120001001 is 1001000212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222120001001 - 2¹ = 1222120000999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222120001051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486124440 + ... + 486126953.

It is an arithmetic number, because the mean of its divisors is an integer number (204172792740).

Almost surely, 2^{1222120001001} is an apocalyptic number.

It is an amenable number.

1222120001001 is a deficient number, since it is larger than the sum of its proper divisors (411262340919).

1222120001001 is an equidigital number, since it uses as much as digits as its factorization.

1222120001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972251815.

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

Adding to 1222120001001 its reverse (1001000212221), we get a palindrome (2223120213222).

The spelling of 1222120001001 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one thousand, one".