1200230012021 has 8 divisors (see below), whose sum is σ = 1273726618560. Its totient is φ = 1127055054528.

The previous prime is 1200230012017. The next prime is 1200230012029. The reversal of 1200230012021 is 1202100320021.

It is a happy number.

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 1200230012021 - 2² = 1200230012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200230011987 and 1200230012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200230012029) 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, 80404571 + ... + 80419496.

It is an arithmetic number, because the mean of its divisors is an integer number (159215827320).

Almost surely, 2^{1200230012021} is an apocalyptic number.

It is an amenable number.

1200230012021 is a deficient number, since it is larger than the sum of its proper divisors (73496606539).

1200230012021 is a wasteful number, since it uses less digits than its factorization.

1200230012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160824523.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1200230012021 its reverse (1202100320021), we get a palindrome (2402330332042).

The spelling of 1200230012021 in words is "one trillion, two hundred billion, two hundred thirty million, twelve thousand, twenty-one".