122101012202221 has 16 divisors (see below), whose sum is σ = 134292132592128. Its totient is φ = 110309746896000.

The previous prime is 122101012202153. The next prime is 122101012202243. The reversal of 122101012202221 is 122202210101221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122101012202221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101012202621) 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, 90190521 + ... + 91534321.

It is an arithmetic number, because the mean of its divisors is an integer number (8393258287008).

Almost surely, 2^{122101012202221} is an apocalyptic number.

It is an amenable number.

122101012202221 is a deficient number, since it is larger than the sum of its proper divisors (12191120389907).

122101012202221 is a wasteful number, since it uses less digits than its factorization.

122101012202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492572.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122101012202221 its reverse (122202210101221), we get a palindrome (244303222303442).

The spelling of 122101012202221 in words is "one hundred twenty-two trillion, one hundred one billion, twelve million, two hundred two thousand, two hundred twenty-one".