1201010001223 has 4 divisors (see below), whose sum is σ = 1201018152880. Its totient is φ = 1201001849568.

The previous prime is 1201010001221. The next prime is 1201010001299. The reversal of 1201010001223 is 3221000101021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201010001223 - 2¹ = 1201010001221 is a prime.

It is a super-2 number, since 2×1201010001223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010001221) 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 3 ways as a sum of consecutive naturals, for example, 3850683 + ... + 4150876.

It is an arithmetic number, because the mean of its divisors is an integer number (300254538220).

Almost surely, 2^{1201010001223} is an apocalyptic number.

1201010001223 is a deficient number, since it is larger than the sum of its proper divisors (8151657).

1201010001223 is an equidigital number, since it uses as much as digits as its factorization.

1201010001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151656.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1201010001223 its reverse (3221000101021), we get a palindrome (4422010102244).

The spelling of 1201010001223 in words is "one trillion, two hundred one billion, ten million, one thousand, two hundred twenty-three".