110001212122021 has 4 divisors (see below), whose sum is σ = 120001322314944. Its totient is φ = 100001101929100.

The previous prime is 110001212121971. The next prime is 110001212122057. The reversal of 110001212122021 is 120221212100011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110001212122021 - 2⁷ = 110001212121893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110001212121986 and 110001212122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001212122621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000055096445 + ... + 5000055096466.

It is an arithmetic number, because the mean of its divisors is an integer number (30000330578736).

Almost surely, 2^{110001212122021} is an apocalyptic number.

110001212122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110001212122021 is a deficient number, since it is larger than the sum of its proper divisors (10000110192923).

110001212122021 is a wasteful number, since it uses less digits than its factorization.

110001212122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000110192922.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110001212122021 its reverse (120221212100011), we get a palindrome (230222424222032).

The spelling of 110001212122021 in words is "one hundred ten trillion, one billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".