21202202010111 has 8 divisors (see below), whose sum is σ = 28269718166400. Its totient is φ = 14134743596952.

The previous prime is 21202202010091. The next prime is 21202202010127. The reversal of 21202202010111 is 11101020220212.

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

It is not a de Polignac number, because 21202202010111 - 2⁶ = 21202202010047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202202010211) 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, 13571635 + ... + 15053028.

It is an arithmetic number, because the mean of its divisors is an integer number (3533714770800).

Almost surely, 2^{21202202010111} is an apocalyptic number.

21202202010111 is a deficient number, since it is larger than the sum of its proper divisors (7067516156289).

21202202010111 is a wasteful number, since it uses less digits than its factorization.

21202202010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28871565.

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

Adding to 21202202010111 its reverse (11101020220212), we get a palindrome (32303222230323).

The spelling of 21202202010111 in words is "twenty-one trillion, two hundred two billion, two hundred two million, ten thousand, one hundred eleven".