1011313232221 has 16 divisors (see below), whose sum is σ = 1051085376000. Its totient is φ = 971989704000.

The previous prime is 1011313232207. The next prime is 1011313232231. The reversal of 1011313232221 is 1222323131101.

It is a cyclic number.

It is not a de Polignac number, because 1011313232221 - 2⁷ = 1011313232093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011313232192 and 1011313232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011313232231) 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, 61466046 + ... + 61482496.

It is an arithmetic number, because the mean of its divisors is an integer number (65692836000).

Almost surely, 2^{1011313232221} is an apocalyptic number.

It is an amenable number.

1011313232221 is a deficient number, since it is larger than the sum of its proper divisors (39772143779).

1011313232221 is a wasteful number, since it uses less digits than its factorization.

1011313232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29940.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1011313232221 its reverse (1222323131101), we get a palindrome (2233636363322).

The spelling of 1011313232221 in words is "one trillion, eleven billion, three hundred thirteen million, two hundred thirty-two thousand, two hundred twenty-one".