221002020122122 has 16 divisors (see below), whose sum is σ = 331981245902592. Its totient is φ = 110341688395120.

The previous prime is 221002020122111. The next prime is 221002020122131. The reversal of 221002020122122 is 221221020200122.

It is a self number, because there is not a number n which added to its sum of digits gives 221002020122122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15602293 + ... + 26180824.

It is an arithmetic number, because the mean of its divisors is an integer number (20748827868912).

Almost surely, 2^{221002020122122} is an apocalyptic number.

221002020122122 is a deficient number, since it is larger than the sum of its proper divisors (110979225780470).

221002020122122 is a wasteful number, since it uses less digits than its factorization.

221002020122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41786933.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221002020122122 its reverse (221221020200122), we get a palindrome (442223040322244).

The spelling of 221002020122122 in words is "two hundred twenty-one trillion, two billion, twenty million, one hundred twenty-two thousand, one hundred twenty-two".