1200010033021 has 8 divisors (see below), whose sum is σ = 1202968710720. Its totient is φ = 1197051807072.

The previous prime is 1200010033009. The next prime is 1200010033043. The reversal of 1200010033021 is 1203300100021.

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 1200010033021 - 2⁵ = 1200010032989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200010032992 and 1200010033010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200010033051) 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, 5555976 + ... + 5767918.

It is an arithmetic number, because the mean of its divisors is an integer number (150371088840).

Almost surely, 2^{1200010033021} is an apocalyptic number.

It is an amenable number.

1200010033021 is a deficient number, since it is larger than the sum of its proper divisors (2958677699).

1200010033021 is a wasteful number, since it uses less digits than its factorization.

1200010033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225875.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1200010033021 its reverse (1203300100021), we get a palindrome (2403310133042).

The spelling of 1200010033021 in words is "one trillion, two hundred billion, ten million, thirty-three thousand, twenty-one".