221000210010122 has 32 divisors (see below), whose sum is σ = 344329895816640. Its totient is φ = 106324353083520.

The previous prime is 221000210010109. The next prime is 221000210010133. The reversal of 221000210010122 is 221010012000122.

It is a junction number, because it is equal to n+sod(n) for n = 221000210010097 and 221000210010106.

It is an unprimeable number.

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, 87782579 + ... + 90265062.

It is an arithmetic number, because the mean of its divisors is an integer number (10760309244270).

Almost surely, 2^{221000210010122} is an apocalyptic number.

221000210010122 is a deficient number, since it is larger than the sum of its proper divisors (123329685806518).

221000210010122 is a wasteful number, since it uses less digits than its factorization.

221000210010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178047926.

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

Adding to 221000210010122 its reverse (221010012000122), we get a palindrome (442010222010244).

The spelling of 221000210010122 in words is "two hundred twenty-one trillion, two hundred ten million, ten thousand, one hundred twenty-two".