20120202221101 has 2 divisors, whose sum is σ = 20120202221102. Its totient is φ = 20120202221100.

The previous prime is 20120202221089. The next prime is 20120202221219. The reversal of 20120202221101 is 10112220202102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16554921863076 + 3565280358025 = 4068774^2 + 1888195^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120202221101 - 2¹¹ = 20120202219053 is a prime.

It is a super-3 number, since 3×20120202221101³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120202221401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060101110550 + 10060101110551.

It is an arithmetic number, because the mean of its divisors is an integer number (10060101110551).

Almost surely, 2^{20120202221101} is an apocalyptic number.

It is an amenable number.

20120202221101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120202221101 is an equidigital number, since it uses as much as digits as its factorization.

20120202221101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120202221101 its reverse (10112220202102), we get a palindrome (30232422423203).

The spelling of 20120202221101 in words is "twenty trillion, one hundred twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred one".