221302022020206 has 32 divisors (see below), whose sum is σ = 448832614295808. Its totient is φ = 72729991131840.

The previous prime is 221302022020199. The next prime is 221302022020207. The reversal of 221302022020206 is 602020220203122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221302022020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91998816 + ... + 94373651.

It is an arithmetic number, because the mean of its divisors is an integer number (14026019196744).

Almost surely, 2^{221302022020206} is an apocalyptic number.

221302022020206 is an abundant number, since it is smaller than the sum of its proper divisors (227530592275602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221302022020206 is a wasteful number, since it uses less digits than its factorization.

221302022020206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186375256.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221302022020206 its reverse (602020220203122), we get a palindrome (823322242223328).

The spelling of 221302022020206 in words is "two hundred twenty-one trillion, three hundred two billion, twenty-two million, twenty thousand, two hundred six".