2112200121012 has 48 divisors (see below), whose sum is σ = 5009758854912. Its totient is φ = 692455870080.

The previous prime is 2112200121011. The next prime is 2112200121049. The reversal of 2112200121012 is 2101210022112.

It is a super-2 number, since 2×2112200121012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112200120982 and 2112200121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7513573 + ... + 7789619.

It is an arithmetic number, because the mean of its divisors is an integer number (104369976144).

Almost surely, 2^{2112200121012} is an apocalyptic number.

It is an amenable number.

2112200121012 is an abundant number, since it is smaller than the sum of its proper divisors (2897558733900).

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

2112200121012 is a wasteful number, since it uses less digits than its factorization.

2112200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286568 (or 286566 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2112200121012 its reverse (2101210022112), we get a palindrome (4213410143124).

The spelling of 2112200121012 in words is "two trillion, one hundred twelve billion, two hundred million, one hundred twenty-one thousand, twelve".