1012331221211 has 8 divisors (see below), whose sum is σ = 1015482202224. Its totient is φ = 1009180798560.

The previous prime is 1012331221163. The next prime is 1012331221217. The reversal of 1012331221211 is 1121221332101.

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 1012331221211 - 2²⁶ = 1012264112347 is a prime.

It is a super-3 number, since 3×1012331221211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012331221217) 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, 3651941 + ... + 3919353.

It is an arithmetic number, because the mean of its divisors is an integer number (126935275278).

Almost surely, 2^{1012331221211} is an apocalyptic number.

1012331221211 is a deficient number, since it is larger than the sum of its proper divisors (3150981013).

1012331221211 is a wasteful number, since it uses less digits than its factorization.

1012331221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279181.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1012331221211 its reverse (1121221332101), we get a palindrome (2133552553312).

The spelling of 1012331221211 in words is "one trillion, twelve billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred eleven".