21202222201000 has 64 divisors (see below), whose sum is σ = 49690360399680. Its totient is φ = 8467699060800.

The previous prime is 21202222200997. The next prime is 21202222201019. The reversal of 21202222201000 is 10222220212.

21202222201000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15843954 + ... + 17129953.

It is an arithmetic number, because the mean of its divisors is an integer number (776411881245).

Almost surely, 2^{21202222201000} is an apocalyptic number.

21202222201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202222201000 is an abundant number, since it is smaller than the sum of its proper divisors (28488138198680).

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

21202222201000 is a wasteful number, since it uses less digits than its factorization.

21202222201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32974571 (or 32974557 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21202222201000 its reverse (10222220212), we get a palindrome (21212444421212).

The spelling of 21202222201000 in words is "twenty-one trillion, two hundred two billion, two hundred twenty-two million, two hundred one thousand".