221222401042 has 16 divisors (see below), whose sum is σ = 332974783872. Its totient is φ = 110230979040.

The previous prime is 221222401013. The next prime is 221222401061. The reversal of 221222401042 is 240104222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667867 + ... + 2749537.

It is an arithmetic number, because the mean of its divisors is an integer number (20810923992).

Almost surely, 2^221222401042 is an apocalyptic number.

221222401042 is a deficient number, since it is larger than the sum of its proper divisors (111752382830).

221222401042 is a wasteful number, since it uses less digits than its factorization.

221222401042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86313.

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

Adding to 221222401042 its reverse (240104222122), we get a palindrome (461326623164).

The spelling of 221222401042 in words is "two hundred twenty-one billion, two hundred twenty-two million, four hundred one thousand, forty-two".