1522072222 has 16 divisors (see below), whose sum is σ = 2515327344. Its totient is φ = 685000000.

The previous prime is 1522072171. The next prime is 1522072241. The reversal of 1522072222 is 2222702251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340279 + ... + 344722.

It is an arithmetic number, because the mean of its divisors is an integer number (157207959).

Almost surely, 2^1522072222 is an apocalyptic number.

1522072222 is a deficient number, since it is larger than the sum of its proper divisors (993255122).

1522072222 is a wasteful number, since it uses less digits than its factorization.

1522072222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685115.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 1522072222 is about 39013.7440141292. The cubic root of 1522072222 is about 1150.3016781321.

Adding to 1522072222 its reverse (2222702251), we get a palindrome (3744774473).

The spelling of 1522072222 in words is "one billion, five hundred twenty-two million, seventy-two thousand, two hundred twenty-two".