1100122022021 has 4 divisors (see below), whose sum is σ = 1200133114944. Its totient is φ = 1000110929100.

The previous prime is 1100122022011. The next prime is 1100122022029. The reversal of 1100122022021 is 1202202210011.

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 a de Polignac number, because none of the positive numbers 2^k-1100122022021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100122021987 and 1100122022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100122022029) 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, 50005546445 + ... + 50005546466.

It is an arithmetic number, because the mean of its divisors is an integer number (300033278736).

Almost surely, 2^{1100122022021} is an apocalyptic number.

1100122022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100122022021 is a deficient number, since it is larger than the sum of its proper divisors (100011092923).

1100122022021 is a wasteful number, since it uses less digits than its factorization.

1100122022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100011092922.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1100122022021 its reverse (1202202210011), we get a palindrome (2302324232032).

It can be divided in two parts, 11001 and 22022021, that added together give a palindrome (22033022).

The spelling of 1100122022021 in words is "one trillion, one hundred billion, one hundred twenty-two million, twenty-two thousand, twenty-one".