222154047 has 6 divisors (see below), whose sum is σ = 320889192. Its totient is φ = 148102692.

The previous prime is 222154043. The next prime is 222154063. The reversal of 222154047 is 740451222.

It is not a de Polignac number, because 222154047 - 2² = 222154043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222154047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222154043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12341883 + ... + 12341900.

It is an arithmetic number, because the mean of its divisors is an integer number (53481532).

Almost surely, 2^222154047 is an apocalyptic number.

222154047 is a deficient number, since it is larger than the sum of its proper divisors (98735145).

222154047 is a wasteful number, since it uses less digits than its factorization.

222154047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24683789 (or 24683786 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 222154047 is about 14904.8330081219. The cubic root of 222154047 is about 605.6449166419.

It can be divided in two parts, 22215 and 4047, that added together give a palindrome (26262).

The spelling of 222154047 in words is "two hundred twenty-two million, one hundred fifty-four thousand, forty-seven".