21011021112022 has 64 divisors (see below), whose sum is σ = 32943591261504. Its totient is φ = 10042573363200.

The previous prime is 21011021112019. The next prime is 21011021112023. The reversal of 21011021112022 is 22021112011012.

It is a junction number, because it is equal to n+sod(n) for n = 21011021111987 and 21011021112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011021112023) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3334550272 + ... + 3334556572.

It is an arithmetic number, because the mean of its divisors is an integer number (514743613461).

Almost surely, 2^{21011021112022} is an apocalyptic number.

21011021112022 is a deficient number, since it is larger than the sum of its proper divisors (11932570149482).

21011021112022 is a wasteful number, since it uses less digits than its factorization.

21011021112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10433.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21011021112022 its reverse (22021112011012), we get a palindrome (43032133123034).

The spelling of 21011021112022 in words is "twenty-one trillion, eleven billion, twenty-one million, one hundred twelve thousand, twenty-two".