122002202221 has 2 divisors, whose sum is σ = 122002202222. Its totient is φ = 122002202220.

The previous prime is 122002202213. The next prime is 122002202263. The reversal of 122002202221 is 122202200221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121246722025 + 755480196 = 348205^2 + 27486^2 .

It is a cyclic number.

It is not a de Polignac number, because 122002202221 - 2³ = 122002202213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122002202195 and 122002202204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002202281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001101110 + 61001101111.

It is an arithmetic number, because the mean of its divisors is an integer number (61001101111).

Almost surely, 2^122002202221 is an apocalyptic number.

It is an amenable number.

122002202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002202221 is an equidigital number, since it uses as much as digits as its factorization.

122002202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 122002202221 its reverse (122202200221), we get a palindrome (244204402442).

The spelling of 122002202221 in words is "one hundred twenty-two billion, two million, two hundred two thousand, two hundred twenty-one".