201400421242 has 16 divisors (see below), whose sum is σ = 325404329472. Its totient is φ = 93214780560.

The previous prime is 201400421239. The next prime is 201400421263. The reversal of 201400421242 is 242124004102.

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, 70615833 + ... + 70618684.

It is an arithmetic number, because the mean of its divisors is an integer number (20337770592).

Almost surely, 2^201400421242 is an apocalyptic number.

201400421242 is a deficient number, since it is larger than the sum of its proper divisors (124003908230).

201400421242 is a wasteful number, since it uses less digits than its factorization.

201400421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141234573.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 201400421242 its reverse (242124004102), we get a palindrome (443524425344).

The spelling of 201400421242 in words is "two hundred one billion, four hundred million, four hundred twenty-one thousand, two hundred forty-two".