2011222210212 has 72 divisors (see below), whose sum is σ = 5425362948096. Its totient is φ = 626003368704.

The previous prime is 2011222210111. The next prime is 2011222210219. The reversal of 2011222210212 is 2120122221102.

It is a happy number.

2011222210212 is a `hidden beast` number, since 20 + 1 + 1 + 222 + 210 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2011222210219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12860508 + ... + 13015955.

It is an arithmetic number, because the mean of its divisors is an integer number (75352263168).

Almost surely, 2^{2011222210212} is an apocalyptic number.

It is an amenable number.

2011222210212 is an abundant number, since it is smaller than the sum of its proper divisors (3414140737884).

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

2011222210212 is a wasteful number, since it uses less digits than its factorization.

2011222210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876617 (or 25876612 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011222210212 its reverse (2120122221102), we get a palindrome (4131344431314).

The spelling of 2011222210212 in words is "two trillion, eleven billion, two hundred twenty-two million, two hundred ten thousand, two hundred twelve".