105013321221 has 16 divisors (see below), whose sum is σ = 145341941760. Its totient is φ = 67372024560.

The previous prime is 105013321219. The next prime is 105013321229. The reversal of 105013321221 is 122123310501.

It is not a de Polignac number, because 105013321221 - 2¹ = 105013321219 is a prime.

It is a super-2 number, since 2×105013321221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105013321229) 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, 3137475 + ... + 3170768.

It is an arithmetic number, because the mean of its divisors is an integer number (9083871360).

Almost surely, 2^105013321221 is an apocalyptic number.

It is an amenable number.

105013321221 is a deficient number, since it is larger than the sum of its proper divisors (40328620539).

105013321221 is a wasteful number, since it uses less digits than its factorization.

105013321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308456.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 105013321221 its reverse (122123310501), we get a palindrome (227136631722).

The spelling of 105013321221 in words is "one hundred five billion, thirteen million, three hundred twenty-one thousand, two hundred twenty-one".