101202122201221 has 4 divisors (see below), whose sum is σ = 101203086567532. Its totient is φ = 101201157834912.

The previous prime is 101202122201207. The next prime is 101202122201261. The reversal of 101202122201221 is 122102221202101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69226377017121 + 31975745184100 = 8320239^2 + 5654710^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202122201221 - 2⁹ = 101202122200709 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 (101202122201261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482025726 + ... + 482235631.

It is an arithmetic number, because the mean of its divisors is an integer number (25300771641883).

Almost surely, 2^{101202122201221} is an apocalyptic number.

It is an amenable number.

101202122201221 is a deficient number, since it is larger than the sum of its proper divisors (964366311).

101202122201221 is an equidigital number, since it uses as much as digits as its factorization.

101202122201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964366310.

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

Adding to 101202122201221 its reverse (122102221202101), we get a palindrome (223304343403322).

The spelling of 101202122201221 in words is "one hundred one trillion, two hundred two billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-one".