1221134014 has 16 divisors (see below), whose sum is σ = 1903881168. Its totient is φ = 586904832.

The previous prime is 1221133997. The next prime is 1221134017. The reversal of 1221134014 is 4104311221.

It is a junction number, because it is equal to n+sod(n) for n = 1221133982 and 1221134000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221134017) 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, 93267 + ... + 105550.

It is an arithmetic number, because the mean of its divisors is an integer number (118992573).

Almost surely, 2^1221134014 is an apocalyptic number.

1221134014 is a deficient number, since it is larger than the sum of its proper divisors (682747154).

1221134014 is a wasteful number, since it uses less digits than its factorization.

1221134014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198939.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1221134014 is about 34944.7279857778. The cubic root of 1221134014 is about 1068.8607007570.

Adding to 1221134014 its reverse (4104311221), we get a palindrome (5325445235).

It can be divided in two parts, 12211 and 34014, that added together give a square (46225 = 215²).

The spelling of 1221134014 in words is "one billion, two hundred twenty-one million, one hundred thirty-four thousand, fourteen".