21020022201122 has 32 divisors (see below), whose sum is σ = 36719896966272. Its totient is φ = 8837240241024.

The previous prime is 21020022200939. The next prime is 21020022201151. The reversal of 21020022201122 is 22110222002012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21020022201122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2614733 + ... + 6991199.

It is an arithmetic number, because the mean of its divisors is an integer number (1147496780196).

Almost surely, 2^{21020022201122} is an apocalyptic number.

21020022201122 is a deficient number, since it is larger than the sum of its proper divisors (15699874765150).

21020022201122 is a wasteful number, since it uses less digits than its factorization.

21020022201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383002.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21020022201122 its reverse (22110222002012), we get a palindrome (43130244203134).

The spelling of 21020022201122 in words is "twenty-one trillion, twenty billion, twenty-two million, two hundred one thousand, one hundred twenty-two".