202011221020122 has 24 divisors (see below), whose sum is σ = 437691245588064. Its totient is φ = 67337032640904.

The previous prime is 202011221020121. The next prime is 202011221020127. The reversal of 202011221020122 is 221020122110202.

It is a happy number.

202011221020122 is a `hidden beast` number, since 20 + 201 + 1 + 221 + 0 + 201 + 22 = 666.

202011221020122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202011221020095 and 202011221020104.

It is not an unprimeable number, because it can be changed into a prime (202011221020121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47165973 + ... + 51270375.

It is an arithmetic number, because the mean of its divisors is an integer number (18237135232836).

Almost surely, 2^{202011221020122} is an apocalyptic number.

202011221020122 is an abundant number, since it is smaller than the sum of its proper divisors (235680024567942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202011221020122 is a wasteful number, since it uses less digits than its factorization.

202011221020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838754 (or 6838751 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202011221020122 its reverse (221020122110202), we get a palindrome (423031343130324).

The spelling of 202011221020122 in words is "two hundred two trillion, eleven billion, two hundred twenty-one million, twenty thousand, one hundred twenty-two".