162020022121 has 4 divisors (see below), whose sum is σ = 162025773700. Its totient is φ = 162014270544.

The previous prime is 162020022119. The next prime is 162020022127. The reversal of 162020022121 is 121220020261.

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 21079845721 + 140940176400 = 145189^2 + 375420^2 .

It is a cyclic number.

It is not a de Polignac number, because 162020022121 - 2¹ = 162020022119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162020022127) 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, 2833326 + ... + 2889943.

It is an arithmetic number, because the mean of its divisors is an integer number (40506443425).

Almost surely, 2^162020022121 is an apocalyptic number.

It is an amenable number.

162020022121 is a deficient number, since it is larger than the sum of its proper divisors (5751579).

162020022121 is an equidigital number, since it uses as much as digits as its factorization.

162020022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751578.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 162020022121 its reverse (121220020261), we get a palindrome (283240042382).

The spelling of 162020022121 in words is "one hundred sixty-two billion, twenty million, twenty-two thousand, one hundred twenty-one".