222128161920031 has 2 divisors, whose sum is σ = 222128161920032. Its totient is φ = 222128161920030.

The previous prime is 222128161919957. The next prime is 222128161920043. The reversal of 222128161920031 is 130029161821222.

222128161920031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222128161920031 - 2¹⁵ = 222128161887263 is a prime.

It is a super-2 number, since 2×222128161920031² (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 (222128161960031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111064080960015 + 111064080960016.

It is an arithmetic number, because the mean of its divisors is an integer number (111064080960016).

Almost surely, 2^{222128161920031} is an apocalyptic number.

222128161920031 is a deficient number, since it is larger than the sum of its proper divisors (1).

222128161920031 is an equidigital number, since it uses as much as digits as its factorization.

222128161920031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 222128161920031 in words is "two hundred twenty-two trillion, one hundred twenty-eight billion, one hundred sixty-one million, nine hundred twenty thousand, thirty-one".