1221014332211 has 8 divisors (see below), whose sum is σ = 1324371356784. Its totient is φ = 1121160935680.

The previous prime is 1221014332141. The next prime is 1221014332229. The reversal of 1221014332211 is 1122334101221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221014332211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221014332261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875906285 + ... + 875907678.

It is an arithmetic number, because the mean of its divisors is an integer number (165546419598).

Almost surely, 2^{1221014332211} is an apocalyptic number.

1221014332211 is a deficient number, since it is larger than the sum of its proper divisors (103357024573).

1221014332211 is a wasteful number, since it uses less digits than its factorization.

1221014332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751814021.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1221014332211 its reverse (1122334101221), we get a palindrome (2343348433432).

The spelling of 1221014332211 in words is "one trillion, two hundred twenty-one billion, fourteen million, three hundred thirty-two thousand, two hundred eleven".