1221301334 has 16 divisors (see below), whose sum is σ = 2085384960. Its totient is φ = 531000360.

The previous prime is 1221301321. The next prime is 1221301363. The reversal of 1221301334 is 4331031221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206314 + ... + 1207325.

It is an arithmetic number, because the mean of its divisors is an integer number (130336560).

Almost surely, 2^1221301334 is an apocalyptic number.

1221301334 is a deficient number, since it is larger than the sum of its proper divisors (864083626).

1221301334 is a wasteful number, since it uses less digits than its factorization.

1221301334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413675.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1221301334 is about 34947.1219701995. The cubic root of 1221301334 is about 1068.9095170219.

Adding to 1221301334 its reverse (4331031221), we get a palindrome (5552332555).

The spelling of 1221301334 in words is "one billion, two hundred twenty-one million, three hundred one thousand, three hundred thirty-four".