21202022010111 has 16 divisors (see below), whose sum is σ = 29760369882240. Its totient is φ = 13389335039520.

The previous prime is 21202022010097. The next prime is 21202022010131. The reversal of 21202022010111 is 11101022020212.

It is not a de Polignac number, because 21202022010111 - 2¹⁴ = 21202021993727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202022010131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19118545 + ... + 20197098.

It is an arithmetic number, because the mean of its divisors is an integer number (1860023117640).

Almost surely, 2^{21202022010111} is an apocalyptic number.

21202022010111 is a deficient number, since it is larger than the sum of its proper divisors (8558347872129).

21202022010111 is a wasteful number, since it uses less digits than its factorization.

21202022010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39325126.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21202022010111 its reverse (11101022020212), we get a palindrome (32303044030323).

The spelling of 21202022010111 in words is "twenty-one trillion, two hundred two billion, twenty-two million, ten thousand, one hundred eleven".