10011212221011 has 32 divisors (see below), whose sum is σ = 14186543500800. Its totient is φ = 6261852925440.

The previous prime is 10011212220943. The next prime is 10011212221037. The reversal of 10011212221011 is 11012221211001.

It is a happy number.

It is not a de Polignac number, because 10011212221011 - 2²³ = 10011203832403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10011212221111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12580491 + ... + 13352571.

It is an arithmetic number, because the mean of its divisors is an integer number (443329484400).

Almost surely, 2^{10011212221011} is an apocalyptic number.

10011212221011 is a deficient number, since it is larger than the sum of its proper divisors (4175331279789).

10011212221011 is a wasteful number, since it uses less digits than its factorization.

10011212221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774299.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10011212221011 its reverse (11012221211001), we get a palindrome (21023433432012).

The spelling of 10011212221011 in words is "ten trillion, eleven billion, two hundred twelve million, two hundred twenty-one thousand, eleven".