221222041442 has 32 divisors (see below), whose sum is σ = 339286631040. Its totient is φ = 108161971200.

The previous prime is 221222041429. The next prime is 221222041451. The reversal of 221222041442 is 244140222122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5398643 + ... + 5439465.

It is an arithmetic number, because the mean of its divisors is an integer number (10602707220).

Almost surely, 2^221222041442 is an apocalyptic number.

221222041442 is a deficient number, since it is larger than the sum of its proper divisors (118064589598).

221222041442 is a wasteful number, since it uses less digits than its factorization.

221222041442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41258.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 221222041442 its reverse (244140222122), we get a palindrome (465362263564).

The spelling of 221222041442 in words is "two hundred twenty-one billion, two hundred twenty-two million, forty-one thousand, four hundred forty-two".