201111022212 has 48 divisors (see below), whose sum is σ = 478652547072. Its totient is φ = 65707800480.

The previous prime is 201111022171. The next prime is 201111022213. The reversal of 201111022212 is 212220111102.

It is a junction number, because it is equal to n+sod(n) for n = 201111022191 and 201111022200.

It is not an unprimeable number, because it can be changed into a prime (201111022213) 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, 668464 + ... + 921447.

It is an arithmetic number, because the mean of its divisors is an integer number (9971928064).

Almost surely, 2^201111022212 is an apocalyptic number.

It is an amenable number.

201111022212 is an abundant number, since it is smaller than the sum of its proper divisors (277541524860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111022212 is a wasteful number, since it uses less digits than its factorization.

201111022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590128 (or 1590126 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201111022212 its reverse (212220111102), we get a palindrome (413331133314).

The spelling of 201111022212 in words is "two hundred one billion, one hundred eleven million, twenty-two thousand, two hundred twelve".