2100012221012 has 24 divisors (see below), whose sum is σ = 3688529851776. Its totient is φ = 1046147046048.

The previous prime is 2100012220987. The next prime is 2100012221123. The reversal of 2100012221012 is 2101222100012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19739153 + ... + 19845255.

It is an arithmetic number, because the mean of its divisors is an integer number (153688743824).

Almost surely, 2^{2100012221012} is an apocalyptic number.

It is an amenable number.

2100012221012 is a deficient number, since it is larger than the sum of its proper divisors (1588517630764).

2100012221012 is a wasteful number, since it uses less digits than its factorization.

2100012221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124247 (or 124245 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100012221012 its reverse (2101222100012), we get a palindrome (4201234321024).

The spelling of 2100012221012 in words is "two trillion, one hundred billion, twelve million, two hundred twenty-one thousand, twelve".