10303201213221 has 32 divisors (see below), whose sum is σ = 15792583857408. Its totient is φ = 5852875553280.

The previous prime is 10303201213171. The next prime is 10303201213267. The reversal of 10303201213221 is 12231210230301.

It is not a de Polignac number, because 10303201213221 - 2²⁹ = 10302664342309 is a prime.

It is a super-3 number, since 3×10303201213221³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303201212221) 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, 34353291 + ... + 34651911.

It is an arithmetic number, because the mean of its divisors is an integer number (493518245544).

Almost surely, 2^{10303201213221} is an apocalyptic number.

It is an amenable number.

10303201213221 is a deficient number, since it is larger than the sum of its proper divisors (5489382644187).

10303201213221 is a wasteful number, since it uses less digits than its factorization.

10303201213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308301.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10303201213221 its reverse (12231210230301), we get a palindrome (22534411443522).

The spelling of 10303201213221 in words is "ten trillion, three hundred three billion, two hundred one million, two hundred thirteen thousand, two hundred twenty-one".