222018742 has 16 divisors (see below), whose sum is σ = 384674832. Its totient is φ = 94981120.

The previous prime is 222018739. The next prime is 222018767. The reversal of 222018742 is 247810222.

It is a self number, because there is not a number n which added to its sum of digits gives 222018742.

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, 296443 + ... + 297190.

It is an arithmetic number, because the mean of its divisors is an integer number (24042177).

Almost surely, 2^222018742 is an apocalyptic number.

222018742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222018742 is a deficient number, since it is larger than the sum of its proper divisors (162656090).

222018742 is a wasteful number, since it uses less digits than its factorization.

222018742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593663.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 222018742 is about 14900.2933528169. The cubic root of 222018742 is about 605.5219337703.

Adding to 222018742 its reverse (247810222), we get a palindrome (469828964).

The spelling of 222018742 in words is "two hundred twenty-two million, eighteen thousand, seven hundred forty-two".