21201144110212 has 48 divisors (see below), whose sum is σ = 40855520946240. Its totient is φ = 9546302563200.

The previous prime is 21201144110207. The next prime is 21201144110269.

21201144110212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 20703163 + ... + 21703069.

It is an arithmetic number, because the mean of its divisors is an integer number (851156686380).

Almost surely, 2^{21201144110212} is an apocalyptic number.

21201144110212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21201144110212 is a deficient number, since it is larger than the sum of its proper divisors (19654376836028).

21201144110212 is a wasteful number, since it uses less digits than its factorization.

21201144110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004452 (or 1004450 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 2120114 and 4110212, that added together give a palindrome (6230326).

The spelling of 21201144110212 in words is "twenty-one trillion, two hundred one billion, one hundred forty-four million, one hundred ten thousand, two hundred twelve".