203201222142 has 16 divisors (see below), whose sum is σ = 406412173440. Its totient is φ = 67732119192.

The previous prime is 203201222141. The next prime is 203201222143. The reversal of 203201222142 is 241222102302.

It is an interprime number because it is at equal distance from previous prime (203201222141) and next prime (203201222143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203201222141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118218 + ... + 648365.

It is an arithmetic number, because the mean of its divisors is an integer number (25400760840).

Almost surely, 2^203201222142 is an apocalyptic number.

203201222142 is an abundant number, since it is smaller than the sum of its proper divisors (203210951298).

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

203201222142 is a wasteful number, since it uses less digits than its factorization.

203201222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810767.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 203201222142 its reverse (241222102302), we get a palindrome (444423324444).

The spelling of 203201222142 in words is "two hundred three billion, two hundred one million, two hundred twenty-two thousand, one hundred forty-two".