1142201222 has 8 divisors (see below), whose sum is σ = 1717119000. Its totient is φ = 569828224.

The previous prime is 1142201171. The next prime is 1142201233. The reversal of 1142201222 is 2221022411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1142201222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635072 + ... + 636867.

It is an arithmetic number, because the mean of its divisors is an integer number (214639875).

Almost surely, 2^1142201222 is an apocalyptic number.

1142201222 is a deficient number, since it is larger than the sum of its proper divisors (574917778).

1142201222 is a wasteful number, since it uses less digits than its factorization.

1142201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272390.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1142201222 is about 33796.4675964811. The cubic root of 1142201222 is about 1045.3158609602.

Adding to 1142201222 its reverse (2221022411), we get a palindrome (3363223633).

The spelling of 1142201222 in words is "one billion, one hundred forty-two million, two hundred one thousand, two hundred twenty-two".