10122100221 has 8 divisors (see below), whose sum is σ = 13497200640. Its totient is φ = 6747533312.

The previous prime is 10122100217. The next prime is 10122100259. The reversal of 10122100221 is 12200122101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10122100221 - 2² = 10122100217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10122100197 and 10122100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122100201) 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 7 ways as a sum of consecutive naturals, for example, 86781 + ... + 166658.

It is an arithmetic number, because the mean of its divisors is an integer number (1687150080).

Almost surely, 2^10122100221 is an apocalyptic number.

It is an amenable number.

10122100221 is a deficient number, since it is larger than the sum of its proper divisors (3375100419).

10122100221 is a wasteful number, since it uses less digits than its factorization.

10122100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266755.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10122100221 its reverse (12200122101), we get a palindrome (22322222322).

The spelling of 10122100221 in words is "ten billion, one hundred twenty-two million, one hundred thousand, two hundred twenty-one".