220021002021011 has 4 divisors (see below), whose sum is σ = 220023557193024. Its totient is φ = 220018446849000.

The previous prime is 220021002020977. The next prime is 220021002021049. The reversal of 220021002021011 is 110120200120022.

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

It is a cyclic number.

It is not a de Polignac number, because 220021002021011 - 2²⁶ = 220020934912147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220021002021061) 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, 1277456840 + ... + 1277629061.

It is an arithmetic number, because the mean of its divisors is an integer number (55005889298256).

Almost surely, 2^{220021002021011} is an apocalyptic number.

220021002021011 is a deficient number, since it is larger than the sum of its proper divisors (2555172013).

220021002021011 is an equidigital number, since it uses as much as digits as its factorization.

220021002021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555172012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220021002021011 its reverse (110120200120022), we get a palindrome (330141202141033).

The spelling of 220021002021011 in words is "two hundred twenty trillion, twenty-one billion, two million, twenty-one thousand, eleven".