21101112220310 has 16 divisors (see below), whose sum is σ = 38178799937856. Its totient is φ = 8396712012288.

The previous prime is 21101112220303. The next prime is 21101112220313. The reversal of 21101112220310 is 1302221110112.

It is a happy number.

It is a super-2 number, since 2×21101112220310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101112220313) 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, 5466607454 + ... + 5466611313.

It is an arithmetic number, because the mean of its divisors is an integer number (2386174996116).

Almost surely, 2^{21101112220310} is an apocalyptic number.

21101112220310 is a deficient number, since it is larger than the sum of its proper divisors (17077687717546).

21101112220310 is a wasteful number, since it uses less digits than its factorization.

21101112220310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933218967.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21101112220310 its reverse (1302221110112), we get a palindrome (22403333330422).

The spelling of 21101112220310 in words is "twenty-one trillion, one hundred one billion, one hundred twelve million, two hundred twenty thousand, three hundred ten".