220102002101 has 2 divisors, whose sum is σ = 220102002102. Its totient is φ = 220102002100.

The previous prime is 220102002089. The next prime is 220102002139. The reversal of 220102002101 is 101200201022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187185157201 + 32916844900 = 432649^2 + 181430^2 .

It is a cyclic number.

It is not a de Polignac number, because 220102002101 - 2¹⁴ = 220101985717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220102052101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110051001050 + 110051001051.

It is an arithmetic number, because the mean of its divisors is an integer number (110051001051).

Almost surely, 2^220102002101 is an apocalyptic number.

It is an amenable number.

220102002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220102002101 is an equidigital number, since it uses as much as digits as its factorization.

220102002101 is an evil number, because the sum of its binary digits is even.

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

Adding to 220102002101 its reverse (101200201022), we get a palindrome (321302203123).

The spelling of 220102002101 in words is "two hundred twenty billion, one hundred two million, two thousand, one hundred one".