203212222442 has 16 divisors (see below), whose sum is σ = 314665181952. Its totient is φ = 98324120160.

The previous prime is 203212222403. The next prime is 203212222457. The reversal of 203212222442 is 244222212302.

It is a happy 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, 1662278 + ... + 1780334.

It is an arithmetic number, because the mean of its divisors is an integer number (19666573872).

Almost surely, 2^203212222442 is an apocalyptic number.

203212222442 is a deficient number, since it is larger than the sum of its proper divisors (111452959510).

203212222442 is a wasteful number, since it uses less digits than its factorization.

203212222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145853.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 203212222442 its reverse (244222212302), we get a palindrome (447434434744).

The spelling of 203212222442 in words is "two hundred three billion, two hundred twelve million, two hundred twenty-two thousand, four hundred forty-two".