222211002021401 has 2 divisors, whose sum is σ = 222211002021402. Its totient is φ = 222211002021400.

The previous prime is 222211002021383. The next prime is 222211002021413. The reversal of 222211002021401 is 104120200112222.

It is a happy number.

222211002021401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111466634066176 + 110744367955225 = 10557776^2 + 10523515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222211002021401 is a prime.

It is not a weakly prime, because it can be changed into another prime (222211002021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105501010700 + 111105501010701.

It is an arithmetic number, because the mean of its divisors is an integer number (111105501010701).

Almost surely, 2^{222211002021401} is an apocalyptic number.

It is an amenable number.

222211002021401 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211002021401 is an equidigital number, since it uses as much as digits as its factorization.

222211002021401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222211002021401 its reverse (104120200112222), we get a palindrome (326331202133623).

The spelling of 222211002021401 in words is "two hundred twenty-two trillion, two hundred eleven billion, two million, twenty-one thousand, four hundred one".