21220000212110 has 32 divisors (see below), whose sum is σ = 43664081130432. Its totient is φ = 7273510433280.

The previous prime is 21220000212107. The next prime is 21220000212121. The reversal of 21220000212110 is 1121200002212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39695321 + ... + 40226340.

It is an arithmetic number, because the mean of its divisors is an integer number (1364502535326).

Almost surely, 2^{21220000212110} is an apocalyptic number.

21220000212110 is an abundant number, since it is smaller than the sum of its proper divisors (22444080918322).

21220000212110 is a wasteful number, since it uses less digits than its factorization.

21220000212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79925468.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21220000212110 its reverse (1121200002212), we get a palindrome (22341200214322).

The spelling of 21220000212110 in words is "twenty-one trillion, two hundred twenty billion, two hundred twelve thousand, one hundred ten".