1223202142 has 8 divisors (see below), whose sum is σ = 1851636600. Its totient is φ = 605989944.

The previous prime is 1223202137. The next prime is 1223202143. The reversal of 1223202142 is 2412023221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223202143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805292 + ... + 2805727.

It is an arithmetic number, because the mean of its divisors is an integer number (231454575).

Almost surely, 2^1223202142 is an apocalyptic number.

1223202142 is a deficient number, since it is larger than the sum of its proper divisors (628434458).

1223202142 is a wasteful number, since it uses less digits than its factorization.

1223202142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611130.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1223202142 is about 34974.3068837683. The cubic root of 1223202142 is about 1069.4637724258.

Adding to 1223202142 its reverse (2412023221), we get a palindrome (3635225363).

The spelling of 1223202142 in words is "one billion, two hundred twenty-three million, two hundred two thousand, one hundred forty-two".