1222542222 has 32 divisors (see below), whose sum is σ = 2701140480. Its totient is φ = 365776320.

The previous prime is 1222542203. The next prime is 1222542247. The reversal of 1222542222 is 2222452221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222542192 and 1222542201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112023 + ... + 122450.

It is an arithmetic number, because the mean of its divisors is an integer number (84410640).

Almost surely, 2^1222542222 is an apocalyptic number.

1222542222 is an abundant number, since it is smaller than the sum of its proper divisors (1478598258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222542222 is a wasteful number, since it uses less digits than its factorization.

1222542222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234568.

The product of its digits is 2560, while the sum is 24.

The square root of 1222542222 is about 34964.8712567342. The cubic root of 1222542222 is about 1069.2714118812.

Adding to 1222542222 its reverse (2222452221), we get a palindrome (3444994443).

Subtracting 1222542222 from its reverse (2222452221), we obtain a palindrome (999909999).

The spelling of 1222542222 in words is "one billion, two hundred twenty-two million, five hundred forty-two thousand, two hundred twenty-two".