221002022202011 has 4 divisors (see below), whose sum is σ = 221002052746224. Its totient is φ = 221001991657800.

The previous prime is 221002022202001. The next prime is 221002022202029. The reversal of 221002022202011 is 110202220200122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 221002022202011 - 2¹⁰ = 221002022200987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002022202001) 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, 2389226 + ... + 21159216.

It is an arithmetic number, because the mean of its divisors is an integer number (55250513186556).

Almost surely, 2^{221002022202011} is an apocalyptic number.

221002022202011 is a deficient number, since it is larger than the sum of its proper divisors (30544213).

221002022202011 is a wasteful number, since it uses less digits than its factorization.

221002022202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30544212.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221002022202011 its reverse (110202220200122), we get a palindrome (331204242402133).

The spelling of 221002022202011 in words is "two hundred twenty-one trillion, two billion, twenty-two million, two hundred two thousand, eleven".