2011211212212 has 60 divisors (see below), whose sum is σ = 5287076182080. Its totient is φ = 666658445904.

The previous prime is 2011211212211. The next prime is 2011211212253. The reversal of 2011211212212 is 2122121121102.

2011211212212 is a `hidden beast` number, since 20 + 11 + 211 + 212 + 212 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011211212211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17281228 + ... + 17397219.

It is an arithmetic number, because the mean of its divisors is an integer number (88117936368).

Almost surely, 2^{2011211212212} is an apocalyptic number.

It is an amenable number.

2011211212212 is an abundant number, since it is smaller than the sum of its proper divisors (3275864969868).

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

2011211212212 is a wasteful number, since it uses less digits than its factorization.

2011211212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34678642 (or 34678631 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2011211212212 its reverse (2122121121102), we get a palindrome (4133332333314).

The spelling of 2011211212212 in words is "two trillion, eleven billion, two hundred eleven million, two hundred twelve thousand, two hundred twelve".