11011022220021 has 8 divisors (see below), whose sum is σ = 15544972545984. Its totient is φ = 6908876687040.

The previous prime is 11011022220019. The next prime is 11011022220047. The reversal of 11011022220021 is 12002222011011.

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

It is not a de Polignac number, because 11011022220021 - 2¹ = 11011022220019 is a prime.

It is a super-2 number, since 2×11011022220021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011022220061) 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, 107951198185 + ... + 107951198286.

It is an arithmetic number, because the mean of its divisors is an integer number (1943121568248).

Almost surely, 2^{11011022220021} is an apocalyptic number.

It is an amenable number.

11011022220021 is a deficient number, since it is larger than the sum of its proper divisors (4533950325963).

11011022220021 is a wasteful number, since it uses less digits than its factorization.

11011022220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215902396491.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11011022220021 its reverse (12002222011011), we get a palindrome (23013244231032).

The spelling of 11011022220021 in words is "eleven trillion, eleven billion, twenty-two million, two hundred twenty thousand, twenty-one".