2012210122212 has 36 divisors (see below), whose sum is σ = 5135802759360. Its totient is φ = 664224699312.

The previous prime is 2012210122141. The next prime is 2012210122217. The reversal of 2012210122212 is 2122210122102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 (2012210122217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271329912 + ... + 271337327.

It is an arithmetic number, because the mean of its divisors is an integer number (142661187760).

Almost surely, 2^{2012210122212} is an apocalyptic number.

It is an amenable number.

2012210122212 is an abundant number, since it is smaller than the sum of its proper divisors (3123592637148).

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

2012210122212 is a wasteful number, since it uses less digits than its factorization.

2012210122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542667352 (or 542667347 counting only the distinct ones).

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

Adding to 2012210122212 its reverse (2122210122102), we get a palindrome (4134420244314).

The spelling of 2012210122212 in words is "two trillion, twelve billion, two hundred ten million, one hundred twenty-two thousand, two hundred twelve".