2101211222012 has 12 divisors (see below), whose sum is σ = 4202422444080. Its totient is φ = 900519095136.

The previous prime is 2101211221997. The next prime is 2101211222039. The reversal of 2101211222012 is 2102221121012.

2101211222012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37521628937 + ... + 37521628992.

It is an arithmetic number, because the mean of its divisors is an integer number (350201870340).

Almost surely, 2^{2101211222012} is an apocalyptic number.

It is an amenable number.

2101211222012 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.

2101211222012 is a wasteful number, since it uses less digits than its factorization.

2101211222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75043257940 (or 75043257938 counting only the distinct ones).

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

Adding to 2101211222012 its reverse (2102221121012), we get a palindrome (4203432343024).

The spelling of 2101211222012 in words is "two trillion, one hundred one billion, two hundred eleven million, two hundred twenty-two thousand, twelve".