1212012001001 has 8 divisors (see below), whose sum is σ = 1237882399104. Its totient is φ = 1186145057520.

The previous prime is 1212012000967. The next prime is 1212012001003. The reversal of 1212012001001 is 1001002102121.

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 1212012001001 - 2¹⁰ = 1212011999977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212012001003) 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, 148235 + ... + 1563968.

It is an arithmetic number, because the mean of its divisors is an integer number (154735299888).

Almost surely, 2^{1212012001001} is an apocalyptic number.

It is an amenable number.

1212012001001 is a deficient number, since it is larger than the sum of its proper divisors (25870398103).

1212012001001 is a wasteful number, since it uses less digits than its factorization.

1212012001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727311.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1212012001001 its reverse (1001002102121), we get a palindrome (2213014103122).

The spelling of 1212012001001 in words is "one trillion, two hundred twelve billion, twelve million, one thousand, one".