1110210101221 has 8 divisors (see below), whose sum is σ = 1201870623744. Its totient is φ = 1019443828080.

The previous prime is 1110210101213. The next prime is 1110210101233. The reversal of 1110210101221 is 1221010120111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1110210101221 - 2³ = 1110210101213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110210101251) 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, 223559761 + ... + 223564726.

It is an arithmetic number, because the mean of its divisors is an integer number (150233827968).

Almost surely, 2^{1110210101221} is an apocalyptic number.

It is an amenable number.

1110210101221 is a deficient number, since it is larger than the sum of its proper divisors (91660522523).

1110210101221 is a wasteful number, since it uses less digits than its factorization.

1110210101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447124691.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110210101221 its reverse (1221010120111), we get a palindrome (2331220221332).

The spelling of 1110210101221 in words is "one trillion, one hundred ten billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".