221134222431197 has 2 divisors, whose sum is σ = 221134222431198. Its totient is φ = 221134222431196.

The previous prime is 221134222431071. The next prime is 221134222431203. The reversal of 221134222431197 is 791134222431122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207945311655481 + 13188910775716 = 14420309^2 + 3631654^2 .

It is a cyclic number.

It is not a de Polignac number, because 221134222431197 - 2¹⁴ = 221134222414813 is a prime.

It is a super-2 number, since 2×221134222431197² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221134222439197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110567111215598 + 110567111215599.

It is an arithmetic number, because the mean of its divisors is an integer number (110567111215599).

Almost surely, 2^{221134222431197} is an apocalyptic number.

It is an amenable number.

221134222431197 is a deficient number, since it is larger than the sum of its proper divisors (1).

221134222431197 is an equidigital number, since it uses as much as digits as its factorization.

221134222431197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The spelling of 221134222431197 in words is "two hundred twenty-one trillion, one hundred thirty-four billion, two hundred twenty-two million, four hundred thirty-one thousand, one hundred ninety-seven".