21022101222110 has 16 divisors (see below), whose sum is σ = 37987018711056. Its totient is φ = 8376121264128.

The previous prime is 21022101222029. The next prime is 21022101222127. The reversal of 21022101222110 is 1122210122012.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4089900392 + ... + 4089905531.

It is an arithmetic number, because the mean of its divisors is an integer number (2374188669441).

Almost surely, 2^{21022101222110} is an apocalyptic number.

21022101222110 is a deficient number, since it is larger than the sum of its proper divisors (16964917488946).

21022101222110 is a wasteful number, since it uses less digits than its factorization.

21022101222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8179806187.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21022101222110 its reverse (1122210122012), we get a palindrome (22144311344122).

The spelling of 21022101222110 in words is "twenty-one trillion, twenty-two billion, one hundred one million, two hundred twenty-two thousand, one hundred ten".