220201002222021 has 48 divisors (see below), whose sum is σ = 334745150625600. Its totient is φ = 139309478864640.

The previous prime is 220201002221999. The next prime is 220201002222109. The reversal of 220201002222021 is 120222200102022.

220201002222021 is a `hidden beast` number, since 220 + 20 + 1 + 0 + 0 + 222 + 202 + 1 = 666.

It is not a de Polignac number, because 220201002222021 - 2⁵ = 220201002221989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220201002221985 and 220201002222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201002220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1233096 + ... + 21021953.

It is an arithmetic number, because the mean of its divisors is an integer number (6973857304700).

Almost surely, 2^{220201002222021} is an apocalyptic number.

It is an amenable number.

220201002222021 is a deficient number, since it is larger than the sum of its proper divisors (114544148403579).

220201002222021 is a wasteful number, since it uses less digits than its factorization.

220201002222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22255826 (or 22255823 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220201002222021 its reverse (120222200102022), we get a palindrome (340423202324043).

The spelling of 220201002222021 in words is "two hundred twenty trillion, two hundred one billion, two million, two hundred twenty-two thousand, twenty-one".