110100012212121 has 32 divisors (see below), whose sum is σ = 151305362976768. Its totient is φ = 71161630488000.

The previous prime is 110100012212089. The next prime is 110100012212233. The reversal of 110100012212121 is 121212210001011.

It is a happy number.

It is not a de Polignac number, because 110100012212121 - 2⁵ = 110100012212089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110100012212121.

It is not an unprimeable number, because it can be changed into a prime (110100013212121) 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, 110287416 + ... + 111281238.

It is an arithmetic number, because the mean of its divisors is an integer number (4728292593024).

Almost surely, 2^{110100012212121} is an apocalyptic number.

It is an amenable number.

110100012212121 is a deficient number, since it is larger than the sum of its proper divisors (41205350764647).

110100012212121 is a wasteful number, since it uses less digits than its factorization.

110100012212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997421.

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

Adding to 110100012212121 its reverse (121212210001011), we get a palindrome (231312222213132).

The spelling of 110100012212121 in words is "one hundred ten trillion, one hundred billion, twelve million, two hundred twelve thousand, one hundred twenty-one".