10001121213 has 16 divisors (see below), whose sum is σ = 13427729856. Its totient is φ = 6621014400.

The previous prime is 10001121197. The next prime is 10001121223. The reversal of 10001121213 is 31212110001.

It is not a de Polignac number, because 10001121213 - 2⁴ = 10001121197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001121223) 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, 938113 + ... + 948713.

It is an arithmetic number, because the mean of its divisors is an integer number (839233116).

Almost surely, 2^10001121213 is an apocalyptic number.

It is an amenable number.

10001121213 is a deficient number, since it is larger than the sum of its proper divisors (3426608643).

10001121213 is a wasteful number, since it uses less digits than its factorization.

10001121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12764.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 10001121213 its reverse (31212110001), we get a palindrome (41213231214).

The spelling of 10001121213 in words is "ten billion, one million, one hundred twenty-one thousand, two hundred thirteen".