222011223220531 has 2 divisors, whose sum is σ = 222011223220532. Its totient is φ = 222011223220530.

The previous prime is 222011223220469. The next prime is 222011223220541. The reversal of 222011223220531 is 135022322110222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222011223220531 - 2²⁵ = 222011189666099 is a prime.

It is a super-2 number, since 2×222011223220531² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222011223220531.

It is not a weakly prime, because it can be changed into another prime (222011223220541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005611610265 + 111005611610266.

It is an arithmetic number, because the mean of its divisors is an integer number (111005611610266).

Almost surely, 2^{222011223220531} is an apocalyptic number.

222011223220531 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011223220531 is an equidigital number, since it uses as much as digits as its factorization.

222011223220531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 222011223220531 its reverse (135022322110222), we get a palindrome (357033545330753).

The spelling of 222011223220531 in words is "two hundred twenty-two trillion, eleven billion, two hundred twenty-three million, two hundred twenty thousand, five hundred thirty-one".