1212423220001 has 8 divisors (see below), whose sum is σ = 1401195375360. Its totient is φ = 1027543274208.

The previous prime is 1212423219947. The next prime is 1212423220003. The reversal of 1212423220001 is 1000223242121.

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 1212423220001 - 2¹⁴ = 1212423203617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212423220003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973051721 + ... + 973052966.

It is an arithmetic number, because the mean of its divisors is an integer number (175149421920).

Almost surely, 2^{1212423220001} is an apocalyptic number.

It is an amenable number.

1212423220001 is a deficient number, since it is larger than the sum of its proper divisors (188772155359).

1212423220001 is an equidigital number, since it uses as much as digits as its factorization.

1212423220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946104783.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1212423220001 its reverse (1000223242121), we get a palindrome (2212646462122).

The spelling of 1212423220001 in words is "one trillion, two hundred twelve billion, four hundred twenty-three million, two hundred twenty thousand, one".