1224121469 has 2 divisors, whose sum is σ = 1224121470. Its totient is φ = 1224121468.

The previous prime is 1224121427. The next prime is 1224121501. The reversal of 1224121469 is 9641214221.

It is an a-pointer prime, because the next prime (1224121501) can be obtained adding 1224121469 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759718969 + 464402500 = 27563^2 + 21550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224121469 - 2¹⁶ = 1224055933 is a prime.

It is a super-2 number, since 2×1224121469² = 2996946741733435922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224151469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612060734 + 612060735.

It is an arithmetic number, because the mean of its divisors is an integer number (612060735).

Almost surely, 2^1224121469 is an apocalyptic number.

It is an amenable number.

1224121469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224121469 is an equidigital number, since it uses as much as digits as its factorization.

1224121469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 1224121469 is about 34987.4473061411. The cubic root of 1224121469 is about 1069.7316324079.

The spelling of 1224121469 in words is "one billion, two hundred twenty-four million, one hundred twenty-one thousand, four hundred sixty-nine".