202122120200120 has 32 divisors (see below), whose sum is σ = 481526227537200. Its totient is φ = 76093033486848.

The previous prime is 202122120200107. The next prime is 202122120200149. The reversal of 202122120200120 is 21002021221202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 148619205350 + ... + 148619206709.

Almost surely, 2^{202122120200120} is an apocalyptic number.

202122120200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122120200120 is an abundant number, since it is smaller than the sum of its proper divisors (279404107337080).

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

202122120200120 is a wasteful number, since it uses less digits than its factorization.

202122120200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297238412087 (or 297238412083 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202122120200120 its reverse (21002021221202), we get a palindrome (223124141421322).

The spelling of 202122120200120 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred twenty million, two hundred thousand, one hundred twenty".