21202211200012 has 12 divisors (see below), whose sum is σ = 37893313634400. Its totient is φ = 10375550161616.

The previous prime is 21202211199907. The next prime is 21202211200021. The reversal of 21202211200012 is 21000211220212.

It is a happy 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, 56388859387 + ... + 56388859762.

It is an arithmetic number, because the mean of its divisors is an integer number (3157776136200).

Almost surely, 2^{21202211200012} is an apocalyptic number.

It is an amenable number.

21202211200012 is a deficient number, since it is larger than the sum of its proper divisors (16691102434388).

21202211200012 is a wasteful number, since it uses less digits than its factorization.

21202211200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112777719200 (or 112777719198 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21202211200012 its reverse (21000211220212), we get a palindrome (42202422420224).

It can be divided in two parts, 2120221 and 1200012, that added together give a palindrome (3320233).

The spelling of 21202211200012 in words is "twenty-one trillion, two hundred two billion, two hundred eleven million, two hundred thousand, twelve".