202022210011021 has 16 divisors (see below), whose sum is σ = 214796320112880. Its totient is φ = 189347059998720.

The previous prime is 202022210011009. The next prime is 202022210011049. The reversal of 202022210011021 is 120110012220202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12528324900 + 202009681686121 = 111930^2 + 14213011^2 .

It is a cyclic number.

It is not a de Polignac number, because 202022210011021 - 2¹⁹ = 202022209486733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202022210010986 and 202022210011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202022210017021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351682185 + ... + 352256161.

It is an arithmetic number, because the mean of its divisors is an integer number (13424770007055).

Almost surely, 2^{202022210011021} is an apocalyptic number.

It is an amenable number.

202022210011021 is a deficient number, since it is larger than the sum of its proper divisors (12774110101859).

202022210011021 is a wasteful number, since it uses less digits than its factorization.

202022210011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660144.

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

Adding to 202022210011021 its reverse (120110012220202), we get a palindrome (322132222231223).

The spelling of 202022210011021 in words is "two hundred two trillion, twenty-two billion, two hundred ten million, eleven thousand, twenty-one".