10122210101221 has 16 divisors (see below), whose sum is σ = 10457080358400. Its totient is φ = 9787864541760.

The previous prime is 10122210101209. The next prime is 10122210101231. The reversal of 10122210101221 is 12210101222101.

It is a cyclic number.

It is not a de Polignac number, because 10122210101221 - 2¹³ = 10122210093029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122210101195 and 10122210101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122210101231) 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, 229751431 + ... + 229795483.

It is an arithmetic number, because the mean of its divisors is an integer number (653567522400).

Almost surely, 2^{10122210101221} is an apocalyptic number.

It is an amenable number.

10122210101221 is a deficient number, since it is larger than the sum of its proper divisors (334870257179).

10122210101221 is a wasteful number, since it uses less digits than its factorization.

10122210101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49836.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10122210101221 its reverse (12210101222101), we get a palindrome (22332311323322).

The spelling of 10122210101221 in words is "ten trillion, one hundred twenty-two billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".