221333001213031 has 12 divisors (see below), whose sum is σ = 224331307780192. Its totient is φ = 218373440148864.

The previous prime is 221333001212993. The next prime is 221333001213053. The reversal of 221333001213031 is 130312100333122.

It is not a de Polignac number, because 221333001213031 - 2²⁵ = 221332967658599 is a prime.

It is a super-2 number, since 2×221333001213031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221333001212987 and 221333001213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221333001213431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26508126 + ... + 33842971.

Almost surely, 2^{221333001213031} is an apocalyptic number.

221333001213031 is a deficient number, since it is larger than the sum of its proper divisors (2998306567161).

221333001213031 is an frugal number, since it uses more digits than its factorization.

221333001213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60351738 (or 60351649 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 221333001213031 its reverse (130312100333122), we get a palindrome (351645101546153).

The spelling of 221333001213031 in words is "two hundred twenty-one trillion, three hundred thirty-three billion, one million, two hundred thirteen thousand, thirty-one".