222121222019 has 2 divisors, whose sum is σ = 222121222020. Its totient is φ = 222121222018.

The previous prime is 222121221977. The next prime is 222121222031. The reversal of 222121222019 is 910222121222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222121222019 - 2¹⁶ = 222121156483 is a prime.

It is a super-5 number, since 5×222121222019⁵ (a number of 58 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (222121222039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060611009 + 111060611010.

It is an arithmetic number, because the mean of its divisors is an integer number (111060611010).

Almost surely, 2^222121222019 is an apocalyptic number.

222121222019 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121222019 is an equidigital number, since it uses as much as digits as its factorization.

222121222019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 222121222019 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, nineteen".