222211002021101 has 2 divisors, whose sum is σ = 222211002021102. Its totient is φ = 222211002021100.

The previous prime is 222211002021083. The next prime is 222211002021139. The reversal of 222211002021101 is 101120200112222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194434159921225 + 27776842099876 = 13943965^2 + 5270374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222211002021101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222211002021101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222211002021401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105501010550 + 111105501010551.

It is an arithmetic number, because the mean of its divisors is an integer number (111105501010551).

Almost surely, 2^{222211002021101} is an apocalyptic number.

It is an amenable number.

222211002021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211002021101 is an equidigital number, since it uses as much as digits as its factorization.

222211002021101 is an evil number, because the sum of its binary digits is even.

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

Adding to 222211002021101 its reverse (101120200112222), we get a palindrome (323331202133323).

The spelling of 222211002021101 in words is "two hundred twenty-two trillion, two hundred eleven billion, two million, twenty-one thousand, one hundred one".