1251032222 has 16 divisors (see below), whose sum is σ = 2047689072. Its totient is φ = 568499520.

The previous prime is 1251032207. The next prime is 1251032231. The reversal of 1251032222 is 2222301521.

It is a junction number, because it is equal to n+sod(n) for n = 1251032194 and 1251032203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146708 + ... + 155000.

It is an arithmetic number, because the mean of its divisors is an integer number (127980567).

Almost surely, 2^1251032222 is an apocalyptic number.

1251032222 is a deficient number, since it is larger than the sum of its proper divisors (796656850).

1251032222 is a wasteful number, since it uses less digits than its factorization.

1251032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15163.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1251032222 is about 35369.9338704499. The cubic root of 1251032222 is about 1077.5137774198.

Adding to 1251032222 its reverse (2222301521), we get a palindrome (3473333743).

The spelling of 1251032222 in words is "one billion, two hundred fifty-one million, thirty-two thousand, two hundred twenty-two".