21112202201110 has 16 divisors (see below), whose sum is σ = 38015081709696. Its totient is φ = 8441965825408.

The previous prime is 21112202201071. The next prime is 21112202201149. The reversal of 21112202201110 is 1110220221112.

It is an interprime number because it is at equal distance from previous prime (21112202201071) and next prime (21112202201149).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364351462 + ... + 364409401.

It is an arithmetic number, because the mean of its divisors is an integer number (2375942606856).

Almost surely, 2^{21112202201110} is an apocalyptic number.

21112202201110 is a deficient number, since it is larger than the sum of its proper divisors (16902879508586).

21112202201110 is a wasteful number, since it uses less digits than its factorization.

21112202201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728763767.

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

Adding to 21112202201110 its reverse (1110220221112), we get a palindrome (22222422422222).

The spelling of 21112202201110 in words is "twenty-one trillion, one hundred twelve billion, two hundred two million, two hundred one thousand, one hundred ten".