101120202202021 has 2 divisors, whose sum is σ = 101120202202022. Its totient is φ = 101120202202020.

The previous prime is 101120202201989. The next prime is 101120202202073. The reversal of 101120202202021 is 120202202021101.

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., 99776425104225 + 1343777097796 = 9988815^2 + 1159214^2 .

It is a cyclic number.

It is not a de Polignac number, because 101120202202021 - 2⁵ = 101120202201989 is a prime.

It is a super-2 number, since 2×101120202202021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101120202201986 and 101120202202004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101120202202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560101101010 + 50560101101011.

It is an arithmetic number, because the mean of its divisors is an integer number (50560101101011).

Almost surely, 2^{101120202202021} is an apocalyptic number.

It is an amenable number.

101120202202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101120202202021 is an equidigital number, since it uses as much as digits as its factorization.

101120202202021 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 101120202202021 its reverse (120202202021101), we get a palindrome (221322404223122).

It can be divided in two parts, 101 and 120202202021, that multiplied together give a palindrome (12140422404121).

The spelling of 101120202202021 in words is "one hundred one trillion, one hundred twenty billion, two hundred two million, two hundred two thousand, twenty-one".