11012000012021 has 4 divisors (see below), whose sum is σ = 11192524602444. Its totient is φ = 10831475421600.

The previous prime is 11012000012003. The next prime is 11012000012053. The reversal of 11012000012021 is 12021000021011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1165514568100 + 9846485443921 = 1079590^2 + 3137911^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012000012021 - 2²⁶ = 11011932903157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012000011993 and 11012000012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012000012821) 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, 90262295120 + ... + 90262295241.

It is an arithmetic number, because the mean of its divisors is an integer number (2798131150611).

Almost surely, 2^{11012000012021} is an apocalyptic number.

It is an amenable number.

11012000012021 is a deficient number, since it is larger than the sum of its proper divisors (180524590423).

11012000012021 is an equidigital number, since it uses as much as digits as its factorization.

11012000012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180524590422.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11012000012021 its reverse (12021000021011), we get a palindrome (23033000033032).

The spelling of 11012000012021 in words is "eleven trillion, twelve billion, twelve thousand, twenty-one".