2101120212212 has 12 divisors (see below), whose sum is σ = 4202240424480. Its totient is φ = 900480090936.

The previous prime is 2101120212211. The next prime is 2101120212229. The reversal of 2101120212212 is 2122120211012.

2101120212212 is an admirable number.

It is a super-2 number, since 2×2101120212212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101120212211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37520003762 + ... + 37520003817.

It is an arithmetic number, because the mean of its divisors is an integer number (350186702040).

Almost surely, 2^{2101120212212} is an apocalyptic number.

It is an amenable number.

2101120212212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2101120212212 is a wasteful number, since it uses less digits than its factorization.

2101120212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75040007590 (or 75040007588 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2101120212212 its reverse (2122120211012), we get a palindrome (4223240423224).

The spelling of 2101120212212 in words is "two trillion, one hundred one billion, one hundred twenty million, two hundred twelve thousand, two hundred twelve".