10101221232013 has 4 divisors (see below), whose sum is σ = 10178329791168. Its totient is φ = 10024112672860.

The previous prime is 10101221231999. The next prime is 10101221232077. The reversal of 10101221232013 is 31023212210101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10101221232013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101201232013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38554279381 + ... + 38554279642.

It is an arithmetic number, because the mean of its divisors is an integer number (2544582447792).

Almost surely, 2^{10101221232013} is an apocalyptic number.

It is an amenable number.

10101221232013 is a deficient number, since it is larger than the sum of its proper divisors (77108559155).

10101221232013 is an equidigital number, since it uses as much as digits as its factorization.

10101221232013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77108559154.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10101221232013 its reverse (31023212210101), we get a palindrome (41124433442114).

The spelling of 10101221232013 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, two hundred thirty-two thousand, thirteen".