122220100222021 has 16 divisors (see below), whose sum is σ = 124935783062400. Its totient is φ = 119528786825280.

The previous prime is 122220100222007. The next prime is 122220100222069. The reversal of 122220100222021 is 120222001022221.

It is a cyclic number.

It is not a de Polignac number, because 122220100222021 - 2⁹ = 122220100221509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122220100222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220100222001) 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, 4652280 + ... + 16312078.

It is an arithmetic number, because the mean of its divisors is an integer number (7808486441400).

Almost surely, 2^{122220100222021} is an apocalyptic number.

It is an amenable number.

122220100222021 is a deficient number, since it is larger than the sum of its proper divisors (2715682840379).

122220100222021 is a wasteful number, since it uses less digits than its factorization.

122220100222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660844.

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

Adding to 122220100222021 its reverse (120222001022221), we get a palindrome (242442101244242).

The spelling of 122220100222021 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred million, two hundred twenty-two thousand, twenty-one".