10011212211 has 96 divisors (see below), whose sum is σ = 18548260864. Its totient is φ = 4670265600.

The previous prime is 10011212209. The next prime is 10011212243. The reversal of 10011212211 is 11221211001.

It is not a de Polignac number, because 10011212211 - 2¹ = 10011212209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10011212251) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1218126 + ... + 1226316.

Almost surely, 2^10011212211 is an apocalyptic number.

10011212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10011212211 is a deficient number, since it is larger than the sum of its proper divisors (8537048653).

10011212211 is a wasteful number, since it uses less digits than its factorization.

10011212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273 (or 8262 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10011212211 its reverse (11221211001), we get a palindrome (21232423212).

It can be divided in two parts, 10011 and 212211, that added together give a palindrome (222222).

The spelling of 10011212211 in words is "ten billion, eleven million, two hundred twelve thousand, two hundred eleven".