110100121001221 has 8 divisors (see below), whose sum is σ = 122394179177984. Its totient is φ = 98352465410160.

The previous prime is 110100121001207. The next prime is 110100121001287. The reversal of 110100121001221 is 122100121001011.

It is a happy number.

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

It is not a de Polignac number, because 110100121001221 - 2⁷ = 110100121001093 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 (110100121001291) 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, 136600646001 + ... + 136600646806.

It is an arithmetic number, because the mean of its divisors is an integer number (15299272397248).

Almost surely, 2^{110100121001221} is an apocalyptic number.

It is an amenable number.

110100121001221 is a deficient number, since it is larger than the sum of its proper divisors (12294058176763).

110100121001221 is a wasteful number, since it uses less digits than its factorization.

110100121001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273201292851.

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

Adding to 110100121001221 its reverse (122100121001011), we get a palindrome (232200242002232).

The spelling of 110100121001221 in words is "one hundred ten trillion, one hundred billion, one hundred twenty-one million, one thousand, two hundred twenty-one".