222148870469 has 2 divisors, whose sum is σ = 222148870470. Its totient is φ = 222148870468.

The previous prime is 222148870451. The next prime is 222148870547. The reversal of 222148870469 is 964078841222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134807934244 + 87340936225 = 367162^2 + 295535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222148870469 is a prime.

It is a super-2 number, since 2×222148870469² (a number of 23 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 222148870469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222148870429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111074435234 + 111074435235.

It is an arithmetic number, because the mean of its divisors is an integer number (111074435235).

Almost surely, 2^222148870469 is an apocalyptic number.

It is an amenable number.

222148870469 is a deficient number, since it is larger than the sum of its proper divisors (1).

222148870469 is an equidigital number, since it uses as much as digits as its factorization.

222148870469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 222148870469 in words is "two hundred twenty-two billion, one hundred forty-eight million, eight hundred seventy thousand, four hundred sixty-nine".