212200021121001 has 64 divisors (see below), whose sum is σ = 293403696230400. Its totient is φ = 136412809041600.

The previous prime is 212200021120999. The next prime is 212200021121017. The reversal of 212200021121001 is 100121120002212.

It is not a de Polignac number, because 212200021121001 - 2¹ = 212200021120999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212200021121401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7663126566 + ... + 7663154256.

It is an arithmetic number, because the mean of its divisors is an integer number (4584432753600).

Almost surely, 2^{212200021121001} is an apocalyptic number.

It is an amenable number.

212200021121001 is a deficient number, since it is larger than the sum of its proper divisors (81203675109399).

212200021121001 is an equidigital number, since it uses as much as digits as its factorization.

212200021121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28255 (or 28181 counting only the distinct ones).

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

Adding to 212200021121001 its reverse (100121120002212), we get a palindrome (312321141123213).

The spelling of 212200021121001 in words is "two hundred twelve trillion, two hundred billion, twenty-one million, one hundred twenty-one thousand, one".