122447229 has 12 divisors (see below), whose sum is σ = 172309536. Its totient is φ = 77334408.

The previous prime is 122447219. The next prime is 122447233. The reversal of 122447229 is 922744221.

122447229 = 393² + 394² + ... + 753².

It is not a de Polignac number, because 122447229 - 2⁹ = 122446717 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122447229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122447219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55449 + ... + 57614.

It is an arithmetic number, because the mean of its divisors is an integer number (14359128).

Almost surely, 2^122447229 is an apocalyptic number.

122447229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122447229 is a deficient number, since it is larger than the sum of its proper divisors (49862307).

122447229 is a wasteful number, since it uses less digits than its factorization.

122447229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113104 (or 113085 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 122447229 is about 11065.5876030150. The cubic root of 122447229 is about 496.5728685432.

The spelling of 122447229 in words is "one hundred twenty-two million, four hundred forty-seven thousand, two hundred twenty-nine".