10122000221 has 8 divisors (see below), whose sum is σ = 10177394424. Its totient is φ = 10066636800.

The previous prime is 10122000211. The next prime is 10122000253. The reversal of 10122000221 is 12200022101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4404976900 + 5717023321 = 66370^2 + 75611^2 .

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 10122000221 - 2¹⁰ = 10121999197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122000211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017371 + ... + 1027271.

It is an arithmetic number, because the mean of its divisors is an integer number (1272174303).

Almost surely, 2^10122000221 is an apocalyptic number.

It is an amenable number.

10122000221 is a deficient number, since it is larger than the sum of its proper divisors (55394203).

10122000221 is an equidigital number, since it uses as much as digits as its factorization.

10122000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10122000221 its reverse (12200022101), we get a palindrome (22322022322).

The spelling of 10122000221 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.