2122012001200 has 120 divisors (see below), whose sum is σ = 6274626363488. Its totient is φ = 671581808640.

The previous prime is 2122012001189. The next prime is 2122012001203. The reversal of 2122012001200 is 21002102212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (2122012001203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29112117 + ... + 29184916.

Almost surely, 2^{2122012001200} is an apocalyptic number.

2122012001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122012001200 is an abundant number, since it is smaller than the sum of its proper divisors (4152614362288).

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

2122012001200 is a wasteful number, since it uses less digits than its factorization.

2122012001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58297071 (or 58297060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2122012001200 its reverse (21002102212), we get a palindrome (2143014103412).

The spelling of 2122012001200 in words is "two trillion, one hundred twenty-two billion, twelve million, one thousand, two hundred".