1212203001401 has 8 divisors (see below), whose sum is σ = 1385390893824. Its totient is φ = 1039019117760.

The previous prime is 1212203001389. The next prime is 1212203001409. The reversal of 1212203001401 is 1041003022121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212203001401 is a prime.

It is a super-2 number, since 2×1212203001401² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212203001401.

It is not an unprimeable number, because it can be changed into a prime (1212203001409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323585 + ... + 1590318.

It is an arithmetic number, because the mean of its divisors is an integer number (173173861728).

Almost surely, 2^{1212203001401} is an apocalyptic number.

It is an amenable number.

1212203001401 is a deficient number, since it is larger than the sum of its proper divisors (173187892423).

1212203001401 is an equidigital number, since it uses as much as digits as its factorization.

1212203001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004391.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1212203001401 its reverse (1041003022121), we get a palindrome (2253206023522).

The spelling of 1212203001401 in words is "one trillion, two hundred twelve billion, two hundred three million, one thousand, four hundred one".