1031221211133 has 32 divisors (see below), whose sum is σ = 1416627726976. Its totient is φ = 666872414208.

The previous prime is 1031221211117. The next prime is 1031221211149. The reversal of 1031221211133 is 3311121221301.

It is an interprime number because it is at equal distance from previous prime (1031221211117) and next prime (1031221211149).

It is not a de Polignac number, because 1031221211133 - 2⁴ = 1031221211117 is a prime.

It is a super-2 number, since 2×1031221211133² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031221211173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42782541 + ... + 42806637.

It is an arithmetic number, because the mean of its divisors is an integer number (44269616468).

Almost surely, 2^{1031221211133} is an apocalyptic number.

It is an amenable number.

1031221211133 is a deficient number, since it is larger than the sum of its proper divisors (385406515843).

1031221211133 is a wasteful number, since it uses less digits than its factorization.

1031221211133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26413.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1031221211133 its reverse (3311121221301), we get a palindrome (4342342432434).

The spelling of 1031221211133 in words is "one trillion, thirty-one billion, two hundred twenty-one million, two hundred eleven thousand, one hundred thirty-three".