1220222463 has 4 divisors (see below), whose sum is σ = 1626963288. Its totient is φ = 813481640.

The previous prime is 1220222459. The next prime is 1220222533. The reversal of 1220222463 is 3642220221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220222463 - 2² = 1220222459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203370408 + ... + 203370413.

It is an arithmetic number, because the mean of its divisors is an integer number (406740822).

Almost surely, 2^1220222463 is an apocalyptic number.

1220222463 is a deficient number, since it is larger than the sum of its proper divisors (406740825).

1220222463 is an equidigital number, since it uses as much as digits as its factorization.

1220222463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406740824.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1220222463 is about 34931.6827965674. The cubic root of 1220222463 is about 1068.5946738326.

Adding to 1220222463 its reverse (3642220221), we get a palindrome (4862442684).

The spelling of 1220222463 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, four hundred sixty-three".