11767321226021 has 16 divisors (see below), whose sum is σ = 12872253542400. Its totient is φ = 10726877884800.

The previous prime is 11767321225999. The next prime is 11767321226053. The reversal of 11767321226021 is 12062212376711.

It is a cyclic number.

It is not a de Polignac number, because 11767321226021 - 2¹⁸ = 11767320963877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11767321226021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11767321226321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159589301 + ... + 159663018.

It is an arithmetic number, because the mean of its divisors is an integer number (804515846400).

Almost surely, 2^{11767321226021} is an apocalyptic number.

It is an amenable number.

11767321226021 is a deficient number, since it is larger than the sum of its proper divisors (1104932316379).

11767321226021 is a wasteful number, since it uses less digits than its factorization.

11767321226021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319252420.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 11767321226021 in words is "eleven trillion, seven hundred sixty-seven billion, three hundred twenty-one million, two hundred twenty-six thousand, twenty-one".