110211212121 has 16 divisors (see below), whose sum is σ = 151751106048. Its totient is φ = 71074684800.

The previous prime is 110211212101. The next prime is 110211212131. The reversal of 110211212121 is 121212112011.

It is a happy number.

It is not a de Polignac number, because 110211212121 - 2²³ = 110202823513 is a prime.

It is a super-2 number, since 2×110211212121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110211212121.

It is not an unprimeable number, because it can be changed into a prime (110211212101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16500 + ... + 469781.

It is an arithmetic number, because the mean of its divisors is an integer number (9484444128).

Almost surely, 2^110211212121 is an apocalyptic number.

It is an amenable number.

110211212121 is a deficient number, since it is larger than the sum of its proper divisors (41539893927).

110211212121 is a wasteful number, since it uses less digits than its factorization.

110211212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488752.

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

Adding to 110211212121 its reverse (121212112011), we get a palindrome (231423324132).

The spelling of 110211212121 in words is "one hundred ten billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-one".