21010001100022 has 16 divisors (see below), whose sum is σ = 34384293687744. Its totient is φ = 9548808309000.

The previous prime is 21010001100017. The next prime is 21010001100029. The reversal of 21010001100022 is 22000110001012.

It is a junction number, because it is equal to n+sod(n) for n = 21010001099981 and 21010001100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010001100029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59429304 + ... + 59781787.

It is an arithmetic number, because the mean of its divisors is an integer number (2149018355484).

Almost surely, 2^{21010001100022} is an apocalyptic number.

21010001100022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21010001100022 is a deficient number, since it is larger than the sum of its proper divisors (13374292587722).

21010001100022 is a wasteful number, since it uses less digits than its factorization.

21010001100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119219115.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21010001100022 its reverse (22000110001012), we get a palindrome (43010111101034).

The spelling of 21010001100022 in words is "twenty-one trillion, ten billion, one million, one hundred thousand, twenty-two".