21022212010111 has 8 divisors (see below), whose sum is σ = 22643492353664. Its totient is φ = 19401529825440.

The previous prime is 21022212010097. The next prime is 21022212010133. The reversal of 21022212010111 is 11101021222012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21022212010111 - 2³⁷ = 20884773056639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022212010411) 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, 149466720 + ... + 149607301.

It is an arithmetic number, because the mean of its divisors is an integer number (2830436544208).

Almost surely, 2^{21022212010111} is an apocalyptic number.

21022212010111 is a deficient number, since it is larger than the sum of its proper divisors (1621280343553).

21022212010111 is a wasteful number, since it uses less digits than its factorization.

21022212010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299079441.

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

Adding to 21022212010111 its reverse (11101021222012), we get a palindrome (32123233232123).

The spelling of 21022212010111 in words is "twenty-one trillion, twenty-two billion, two hundred twelve million, ten thousand, one hundred eleven".