1221014023 has 8 divisors (see below), whose sum is σ = 1254470288. Its totient is φ = 1187581824.

The previous prime is 1221013979. The next prime is 1221014029. The reversal of 1221014023 is 3204101221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221014023 - 2¹³ = 1221005831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221013988 and 1221014006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221014029) 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 in 7 ways as a sum of consecutive naturals, for example, 154240 + ... + 161962.

It is an arithmetic number, because the mean of its divisors is an integer number (156808786).

Almost surely, 2^1221014023 is an apocalyptic number.

1221014023 is a deficient number, since it is larger than the sum of its proper divisors (33456265).

1221014023 is an equidigital number, since it uses as much as digits as its factorization.

1221014023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1221014023 is about 34943.0110751778. The cubic root of 1221014023 is about 1068.8256901674.

Adding to 1221014023 its reverse (3204101221), we get a palindrome (4425115244).

The spelling of 1221014023 in words is "one billion, two hundred twenty-one million, fourteen thousand, twenty-three".