12220212011 has 16 divisors (see below), whose sum is σ = 14354909184. Its totient is φ = 10184940864.

The previous prime is 12220211987. The next prime is 12220212049. The reversal of 12220212011 is 11021202221.

It is not a de Polignac number, because 12220212011 - 2⁶ = 12220211947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220212061) 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, 23906 + ... + 158151.

It is an arithmetic number, because the mean of its divisors is an integer number (897181824).

Almost surely, 2^12220212011 is an apocalyptic number.

12220212011 is a deficient number, since it is larger than the sum of its proper divisors (2134697173).

12220212011 is a wasteful number, since it uses less digits than its factorization.

12220212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182330.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220212011 its reverse (11021202221), we get a palindrome (23241414232).

The spelling of 12220212011 in words is "twelve billion, two hundred twenty million, two hundred twelve thousand, eleven".