122002211202221 has 16 divisors (see below), whose sum is σ = 139603055507328. Its totient is φ = 104444371080000.

The previous prime is 122002211202161. The next prime is 122002211202239. The reversal of 122002211202221 is 122202112200221.

It is a de Polignac number, because none of the positive numbers 2^k-122002211202221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122002211202193 and 122002211202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002211202251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98809571 + ... + 100036671.

It is an arithmetic number, because the mean of its divisors is an integer number (8725190969208).

Almost surely, 2^{122002211202221} is an apocalyptic number.

It is an amenable number.

122002211202221 is a deficient number, since it is larger than the sum of its proper divisors (17600844305107).

122002211202221 is a wasteful number, since it uses less digits than its factorization.

122002211202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244612.

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

Adding to 122002211202221 its reverse (122202112200221), we get a palindrome (244204323402442).

The spelling of 122002211202221 in words is "one hundred twenty-two trillion, two billion, two hundred eleven million, two hundred two thousand, two hundred twenty-one".