11023212211 has 32 divisors (see below), whose sum is σ = 12417628608. Its totient is φ = 9701130240.

The previous prime is 11023212203. The next prime is 11023212229. The reversal of 11023212211 is 11221232011.

It is a cyclic number.

It is not a de Polignac number, because 11023212211 - 2³ = 11023212203 is a prime.

It is a super-2 number, since 2×11023212211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11023212611) 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, 10670551 + ... + 10671583.

It is an arithmetic number, because the mean of its divisors is an integer number (388050894).

Almost surely, 2^11023212211 is an apocalyptic number.

11023212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11023212211 is a deficient number, since it is larger than the sum of its proper divisors (1394416397).

11023212211 is a wasteful number, since it uses less digits than its factorization.

11023212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11023212211 its reverse (11221232011), we get a palindrome (22244444222).

The spelling of 11023212211 in words is "eleven billion, twenty-three million, two hundred twelve thousand, two hundred eleven".