11012200020021 has 4 divisors (see below), whose sum is σ = 14682933360032. Its totient is φ = 7341466680012.

The previous prime is 11012200020013. The next prime is 11012200020023. The reversal of 11012200020021 is 12002000221011.

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 not a de Polignac number, because 11012200020021 - 2³ = 11012200020013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012200019979 and 11012200020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012200020023) 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, 1835366670001 + ... + 1835366670006.

It is an arithmetic number, because the mean of its divisors is an integer number (3670733340008).

Almost surely, 2^{11012200020021} is an apocalyptic number.

It is an amenable number.

11012200020021 is a deficient number, since it is larger than the sum of its proper divisors (3670733340011).

11012200020021 is an equidigital number, since it uses as much as digits as its factorization.

11012200020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670733340010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11012200020021 its reverse (12002000221011), we get a palindrome (23014200241032).

The spelling of 11012200020021 in words is "eleven trillion, twelve billion, two hundred million, twenty thousand, twenty-one".