122202012011221 has 8 divisors (see below), whose sum is σ = 123136196736600. Its totient is φ = 121268438869248.

The previous prime is 122202012011197. The next prime is 122202012011227. The reversal of 122202012011221 is 122110210202221.

It can be written as a sum of positive squares in 4 ways, for example, as 95749649780625 + 26452362230596 = 9785175^2 + 5143186^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122202012011221 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 (122202012011227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152494696 + ... + 153293953.

It is an arithmetic number, because the mean of its divisors is an integer number (15392024592075).

Almost surely, 2^{122202012011221} is an apocalyptic number.

It is an amenable number.

122202012011221 is a deficient number, since it is larger than the sum of its proper divisors (934184725379).

122202012011221 is a wasteful number, since it uses less digits than its factorization.

122202012011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305791703.

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

Adding to 122202012011221 its reverse (122110210202221), we get a palindrome (244312222213442).

The spelling of 122202012011221 in words is "one hundred twenty-two trillion, two hundred two billion, twelve million, eleven thousand, two hundred twenty-one".