201121121210120 has 64 divisors (see below), whose sum is σ = 464377667544000. Its totient is φ = 78362707408128.

The previous prime is 201121121210111. The next prime is 201121121210129. The reversal of 201121121210120 is 21012121121102.

It is an interprime number because it is at equal distance from previous prime (201121121210111) and next prime (201121121210129).

It is not an unprimeable number, because it can be changed into a prime (201121121210129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340958750 + ... + 341548109.

It is an arithmetic number, because the mean of its divisors is an integer number (7255901055375).

Almost surely, 2^{201121121210120} is an apocalyptic number.

201121121210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121121210120 is an abundant number, since it is smaller than the sum of its proper divisors (263256546333880).

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

201121121210120 is a wasteful number, since it uses less digits than its factorization.

201121121210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682507062 (or 682507058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201121121210120 its reverse (21012121121102), we get a palindrome (222133242331222).

The spelling of 201121121210120 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".