10022001122221 has 16 divisors (see below), whose sum is σ = 11552854671360. Its totient is φ = 8604469851120.

The previous prime is 10022001122219. The next prime is 10022001122233. The reversal of 10022001122221 is 12222110022001.

It is a happy number.

It is not a de Polignac number, because 10022001122221 - 2¹ = 10022001122219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022001122195 and 10022001122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022001122621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250693005 + ... + 250732978.

It is an arithmetic number, because the mean of its divisors is an integer number (722053416960).

Almost surely, 2^{10022001122221} is an apocalyptic number.

10022001122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10022001122221 is a deficient number, since it is larger than the sum of its proper divisors (1530853549139).

10022001122221 is a wasteful number, since it uses less digits than its factorization.

10022001122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501426096.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10022001122221 its reverse (12222110022001), we get a palindrome (22244111144222).

It can be divided in two parts, 10022001 and 122221, that multiplied together give a palindrome (1224898984221).

The spelling of 10022001122221 in words is "ten trillion, twenty-two billion, one million, one hundred twenty-two thousand, two hundred twenty-one".