1100121011021 has 8 divisors (see below), whose sum is σ = 1126990174464. Its totient is φ = 1073253606880.

The previous prime is 1100121010997. The next prime is 1100121011027. The reversal of 1100121011021 is 1201101210011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100121011021 - 2¹⁰ = 1100121009997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100121010993 and 1100121011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100121011027) 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, 873380 + ... + 1721346.

It is an arithmetic number, because the mean of its divisors is an integer number (140873771808).

Almost surely, 2^{1100121011021} is an apocalyptic number.

It is an amenable number.

1100121011021 is a deficient number, since it is larger than the sum of its proper divisors (26869163443).

1100121011021 is an equidigital number, since it uses as much as digits as its factorization.

1100121011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879651.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100121011021 its reverse (1201101210011), we get a palindrome (2301222221032).

The spelling of 1100121011021 in words is "one trillion, one hundred billion, one hundred twenty-one million, eleven thousand, twenty-one".