1221929483 has 2 divisors, whose sum is σ = 1221929484. Its totient is φ = 1221929482.

The previous prime is 1221929461. The next prime is 1221929497. The reversal of 1221929483 is 3849291221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1221929483 - 2¹⁰ = 1221928459 is a prime.

It is a super-2 number, since 2×1221929483² = 2986223322849294578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1221929483.

It is not a weakly prime, because it can be changed into another prime (1221929783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610964741 + 610964742.

It is an arithmetic number, because the mean of its divisors is an integer number (610964742).

Almost surely, 2^1221929483 is an apocalyptic number.

1221929483 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221929483 is an equidigital number, since it uses as much as digits as its factorization.

1221929483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 1221929483 is about 34956.1079498276. The cubic root of 1221929483 is about 1069.0927421731.

The spelling of 1221929483 in words is "one billion, two hundred twenty-one million, nine hundred twenty-nine thousand, four hundred eighty-three".