10220111220221 has 8 divisors (see below), whose sum is σ = 11703074317440. Its totient is φ = 8742884925168.

The previous prime is 10220111220199. The next prime is 10220111220257. The reversal of 10220111220221 is 12202211102201.

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 10220111220221 - 2⁶ = 10220111220157 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 10220111220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220111220421) 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, 1434196721 + ... + 1434203846.

It is an arithmetic number, because the mean of its divisors is an integer number (1462884289680).

Almost surely, 2^{10220111220221} is an apocalyptic number.

It is an amenable number.

10220111220221 is a deficient number, since it is larger than the sum of its proper divisors (1482963097219).

10220111220221 is an equidigital number, since it uses as much as digits as its factorization.

10220111220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868401083.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10220111220221 its reverse (12202211102201), we get a palindrome (22422322322422).

The spelling of 10220111220221 in words is "ten trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-one".