202021301020122 has 48 divisors (see below), whose sum is σ = 449545450859232. Its totient is φ = 65520049448160.

The previous prime is 202021301020073. The next prime is 202021301020153. The reversal of 202021301020122 is 221020103120202.

202021301020122 is a `hidden beast` number, since 20 + 202 + 1 + 301 + 0 + 20 + 122 = 666.

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 = 202021301020095 and 202021301020104.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 131645253 + ... + 133170999.

It is an arithmetic number, because the mean of its divisors is an integer number (9365530226234).

Almost surely, 2^{202021301020122} is an apocalyptic number.

202021301020122 is an abundant number, since it is smaller than the sum of its proper divisors (247524149839110).

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

202021301020122 is a wasteful number, since it uses less digits than its factorization.

202021301020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724603 (or 1724600 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 202021301020122 its reverse (221020103120202), we get a palindrome (423041404140324).

The spelling of 202021301020122 in words is "two hundred two trillion, twenty-one billion, three hundred one million, twenty thousand, one hundred twenty-two".