221132022201 has 12 divisors (see below), whose sum is σ = 319583117412. Its totient is φ = 147342795936.

The previous prime is 221132022197. The next prime is 221132022229. The reversal of 221132022201 is 102220231122.

It can be written as a sum of positive squares in 2 ways, for example, as 81853782201 + 139278240000 = 286101^2 + 373200^2 .

It is not a de Polignac number, because 221132022201 - 2² = 221132022197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221132022281) 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, 6528186 + ... + 6561971.

It is an arithmetic number, because the mean of its divisors is an integer number (26631926451).

Almost surely, 2^221132022201 is an apocalyptic number.

It is an amenable number.

221132022201 is a deficient number, since it is larger than the sum of its proper divisors (98451095211).

221132022201 is a wasteful number, since it uses less digits than its factorization.

221132022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092040 (or 13092037 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221132022201 its reverse (102220231122), we get a palindrome (323352253323).

The spelling of 221132022201 in words is "two hundred twenty-one billion, one hundred thirty-two million, twenty-two thousand, two hundred one".