1022221199 has 4 divisors (see below), whose sum is σ = 1022538120. Its totient is φ = 1021904280.

The previous prime is 1022221181. The next prime is 1022221217. The reversal of 1022221199 is 9911222201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9911222201 = 1889 ⋅5246809.

It is an interprime number because it is at equal distance from previous prime (1022221181) and next prime (1022221217).

It is a cyclic number.

It is not a de Polignac number, because 1022221199 - 2²⁴ = 1005443983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153572 + ... + 160089.

It is an arithmetic number, because the mean of its divisors is an integer number (255634530).

Almost surely, 2^1022221199 is an apocalyptic number.

1022221199 is a deficient number, since it is larger than the sum of its proper divisors (316921).

1022221199 is an equidigital number, since it uses as much as digits as its factorization.

1022221199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316920.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1022221199 is about 31972.1941536705. The cubic root of 1022221199 is about 1007.3528691386.

The spelling of 1022221199 in words is "one billion, twenty-two million, two hundred twenty-one thousand, one hundred ninety-nine".