110102212121 has 16 divisors (see below), whose sum is σ = 127192524480. Its totient is φ = 94193518080.

The previous prime is 110102212109. The next prime is 110102212183. The reversal of 110102212121 is 121212201011.

It is a cyclic number.

It is not a de Polignac number, because 110102212121 - 2¹⁴ = 110102195737 is a prime.

It is a super-2 number, since 2×110102212121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110102212096 and 110102212105.

It is not an unprimeable number, because it can be changed into a prime (110102212321) 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, 1714490 + ... + 1777548.

It is an arithmetic number, because the mean of its divisors is an integer number (7949532780).

Almost surely, 2^110102212121 is an apocalyptic number.

110102212121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110102212121 is a deficient number, since it is larger than the sum of its proper divisors (17090312359).

110102212121 is a wasteful number, since it uses less digits than its factorization.

110102212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72424.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110102212121 its reverse (121212201011), we get a palindrome (231314413132).

It can be divided in two parts, 110102 and 212121, that added together give a palindrome (322223).

The spelling of 110102212121 in words is "one hundred ten billion, one hundred two million, two hundred twelve thousand, one hundred twenty-one".