1222401469 has 4 divisors (see below), whose sum is σ = 1235003644. Its totient is φ = 1209799296.

The previous prime is 1222401451. The next prime is 1222401547. The reversal of 1222401469 is 9641042221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 557432100 + 664969369 = 23610^2 + 25787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222401469 - 2⁵ = 1222401437 is a prime.

It is a super-2 number, since 2×1222401469² = 2988530702826715922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222401469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222401409) 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, 6300942 + ... + 6301135.

It is an arithmetic number, because the mean of its divisors is an integer number (308750911).

Almost surely, 2^1222401469 is an apocalyptic number.

It is an amenable number.

1222401469 is a deficient number, since it is larger than the sum of its proper divisors (12602175).

1222401469 is an equidigital number, since it uses as much as digits as its factorization.

1222401469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12602174.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1222401469 is about 34962.8584214735. The cubic root of 1222401469 is about 1069.2303747340.

The spelling of 1222401469 in words is "one billion, two hundred twenty-two million, four hundred one thousand, four hundred sixty-nine".