1223213001 has 8 divisors (see below), whose sum is σ = 1639147200. Its totient is φ = 811377072.

The previous prime is 1223212999. The next prime is 1223213041. The reversal of 1223213001 is 1003123221.

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

It is not a de Polignac number, because 1223213001 - 2¹ = 1223212999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223213041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023870 + ... + 1025063.

It is an arithmetic number, because the mean of its divisors is an integer number (204893400).

Almost surely, 2^1223213001 is an apocalyptic number.

It is an amenable number.

1223213001 is a deficient number, since it is larger than the sum of its proper divisors (415934199).

1223213001 is a wasteful number, since it uses less digits than its factorization.

1223213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049135.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1223213001 is about 34974.4621259570. The cubic root of 1223213001 is about 1069.4669371446.

Adding to 1223213001 its reverse (1003123221), we get a palindrome (2226336222).

It can be divided in two parts, 122 and 3213001, that added together give a palindrome (3213123).

The spelling of 1223213001 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, one".