201221131111319 has 12 divisors (see below), whose sum is σ = 223324294768848. Its totient is φ = 181152298076640.

The previous prime is 201221131111303. The next prime is 201221131111331. The reversal of 201221131111319 is 913111131122102.

It is not a de Polignac number, because 201221131111319 - 2⁴ = 201221131111303 is a prime.

It is a super-2 number, since 2×201221131111319² (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 = 201221131111291 and 201221131111300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221131111379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8072728094 + ... + 8072753019.

It is an arithmetic number, because the mean of its divisors is an integer number (18610357897404).

Almost surely, 2^{201221131111319} is an apocalyptic number.

201221131111319 is a deficient number, since it is larger than the sum of its proper divisors (22103163657529).

201221131111319 is a wasteful number, since it uses less digits than its factorization.

201221131111319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145481238 (or 16145481227 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 201221131111319 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred thirty-one million, one hundred eleven thousand, three hundred nineteen".