1221014029 has 2 divisors, whose sum is σ = 1221014030. Its totient is φ = 1221014028.

The previous prime is 1221013979. The next prime is 1221014033. The reversal of 1221014029 is 9204101221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057225225 + 163788804 = 32515^2 + 12798^2 .

It is a cyclic number.

It is not a de Polignac number, because 1221014029 - 2¹³ = 1221005837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221014059) 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, 610507014 + 610507015.

It is an arithmetic number, because the mean of its divisors is an integer number (610507015).

Almost surely, 2^1221014029 is an apocalyptic number.

It is an amenable number.

1221014029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221014029 is an equidigital number, since it uses as much as digits as its factorization.

1221014029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1221014029 is about 34943.0111610319. The cubic root of 1221014029 is about 1068.8256919181.

The spelling of 1221014029 in words is "one billion, two hundred twenty-one million, fourteen thousand, twenty-nine".