20021202201101 has 2 divisors, whose sum is σ = 20021202201102. Its totient is φ = 20021202201100.

The previous prime is 20021202201089. The next prime is 20021202201131. The reversal of 20021202201101 is 10110220212002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16278037506025 + 3743164695076 = 4034605^2 + 1934726^2 .

It is a cyclic number.

It is not a de Polignac number, because 20021202201101 - 2³⁸ = 19746324294157 is a prime.

It is a super-2 number, since 2×20021202201101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021202201131) 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, 10010601100550 + 10010601100551.

It is an arithmetic number, because the mean of its divisors is an integer number (10010601100551).

Almost surely, 2^{20021202201101} is an apocalyptic number.

It is an amenable number.

20021202201101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021202201101 is an equidigital number, since it uses as much as digits as its factorization.

20021202201101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021202201101 its reverse (10110220212002), we get a palindrome (30131422413103).

The spelling of 20021202201101 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred one thousand, one hundred one".