1222200539 has 16 divisors (see below), whose sum is σ = 1442897088. Its totient is φ = 1013357952.

The previous prime is 1222200439. The next prime is 1222200559. The reversal of 1222200539 is 9350022221.

It is a cyclic number.

It is not a de Polignac number, because 1222200539 - 2²⁰ = 1221151963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222200559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31169 + ... + 58445.

It is an arithmetic number, because the mean of its divisors is an integer number (90181068).

Almost surely, 2^1222200539 is an apocalyptic number.

1222200539 is a deficient number, since it is larger than the sum of its proper divisors (220696549).

1222200539 is a wasteful number, since it uses less digits than its factorization.

1222200539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27494.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1222200539 is about 34959.9848255116. The cubic root of 1222200539 is about 1069.1717872631.

The spelling of 1222200539 in words is "one billion, two hundred twenty-two million, two hundred thousand, five hundred thirty-nine".