110002111021221 has 32 divisors (see below), whose sum is σ = 155891783063808. Its totient is φ = 68756642058240.

The previous prime is 110002111021217. The next prime is 110002111021247. The reversal of 110002111021221 is 122120111200011.

It is a happy number.

It is not a de Polignac number, because 110002111021221 - 2² = 110002111021217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110002111021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002111026221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632483545 + ... + 632657441.

It is an arithmetic number, because the mean of its divisors is an integer number (4871618220744).

Almost surely, 2^{110002111021221} is an apocalyptic number.

It is an amenable number.

110002111021221 is a deficient number, since it is larger than the sum of its proper divisors (45889672042587).

110002111021221 is a wasteful number, since it uses less digits than its factorization.

110002111021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221341.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110002111021221 its reverse (122120111200011), we get a palindrome (232122222221232).

The spelling of 110002111021221 in words is "one hundred ten trillion, two billion, one hundred eleven million, twenty-one thousand, two hundred twenty-one".