201212021111120 has 40 divisors (see below), whose sum is σ = 469557049316040. Its totient is φ = 80185608404480.

The previous prime is 201212021111077. The next prime is 201212021111197. The reversal of 201212021111120 is 21111120212102.

It can be written as a sum of positive squares in 4 ways, for example, as 124419863824 + 201087601247296 = 352732^2 + 14180536^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674978971 + ... + 4675022010.

It is an arithmetic number, because the mean of its divisors is an integer number (11738926232901).

Almost surely, 2^{201212021111120} is an apocalyptic number.

201212021111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212021111120 is an abundant number, since it is smaller than the sum of its proper divisors (268345028204920).

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

201212021111120 is a wasteful number, since it uses less digits than its factorization.

201212021111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350001263 (or 9350001257 counting only the distinct ones).

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

Adding to 201212021111120 its reverse (21111120212102), we get a palindrome (222323141323222).

The spelling of 201212021111120 in words is "two hundred one trillion, two hundred twelve billion, twenty-one million, one hundred eleven thousand, one hundred twenty".