1221001123314 has 32 divisors (see below), whose sum is σ = 2817955445760. Its totient is φ = 345470496912.

The previous prime is 1221001123291. The next prime is 1221001123339. The reversal of 1221001123314 is 4133211001221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141119244 + ... + 141127895.

It is an arithmetic number, because the mean of its divisors is an integer number (88061107680).

Almost surely, 2^{1221001123314} is an apocalyptic number.

1221001123314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1221001123314 is an abundant number, since it is smaller than the sum of its proper divisors (1596954322446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221001123314 is a wasteful number, since it uses less digits than its factorization.

1221001123314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282247254.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1221001123314 its reverse (4133211001221), we get a palindrome (5354212124535).

The spelling of 1221001123314 in words is "one trillion, two hundred twenty-one billion, one million, one hundred twenty-three thousand, three hundred fourteen".