222001222542 has 16 divisors (see below), whose sum is σ = 484366303872. Its totient is φ = 67273097720.

The previous prime is 222001222519. The next prime is 222001222577. The reversal of 222001222542 is 245222100222.

It is a happy number.

It is a congruent 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, 1681827378 + ... + 1681827509.

It is an arithmetic number, because the mean of its divisors is an integer number (30272893992).

Almost surely, 2^222001222542 is an apocalyptic number.

222001222542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222001222542 is an abundant number, since it is smaller than the sum of its proper divisors (262365081330).

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

222001222542 is a wasteful number, since it uses less digits than its factorization.

222001222542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363654903.

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 222001222542 its reverse (245222100222), we get a palindrome (467223322764).

The spelling of 222001222542 in words is "two hundred twenty-two billion, one million, two hundred twenty-two thousand, five hundred forty-two".