1102001011021 has 4 divisors (see below), whose sum is σ = 1105544422944. Its totient is φ = 1098457599100.

The previous prime is 1102001010967. The next prime is 1102001011057. The reversal of 1102001011021 is 1201101002011.

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 1102001011021 - 2¹⁹ = 1102000486733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102001010989 and 1102001011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102001011421) 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, 1771705495 + ... + 1771706116.

It is an arithmetic number, because the mean of its divisors is an integer number (276386105736).

Almost surely, 2^{1102001011021} is an apocalyptic number.

It is an amenable number.

1102001011021 is a deficient number, since it is larger than the sum of its proper divisors (3543411923).

1102001011021 is an equidigital number, since it uses as much as digits as its factorization.

1102001011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543411922.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1102001011021 its reverse (1201101002011), we get a palindrome (2303102013032).

The spelling of 1102001011021 in words is "one trillion, one hundred two billion, one million, eleven thousand, twenty-one".