1046013221 has 16 divisors (see below), whose sum is σ = 1152456768. Its totient is φ = 941500800.

The previous prime is 1046013211. The next prime is 1046013233. The reversal of 1046013221 is 1223106401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1046013221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1046013193 and 1046013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1046013211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814646 + ... + 815928.

It is an arithmetic number, because the mean of its divisors is an integer number (72028548).

Almost surely, 2^1046013221 is an apocalyptic number.

1046013221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1046013221 is a deficient number, since it is larger than the sum of its proper divisors (106443547).

1046013221 is a wasteful number, since it uses less digits than its factorization.

1046013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1046013221 is about 32342.1276510993. The cubic root of 1046013221 is about 1015.1083291724.

Adding to 1046013221 its reverse (1223106401), we get a palindrome (2269119622).

The spelling of 1046013221 in words is "one billion, forty-six million, thirteen thousand, two hundred twenty-one".