201120011211220 has 12 divisors (see below), whose sum is σ = 422352023543604. Its totient is φ = 80448004484480.

The previous prime is 201120011211199. The next prime is 201120011211241. The reversal of 201120011211220 is 22112110021102.

It is an interprime number because it is at equal distance from previous prime (201120011211199) and next prime (201120011211241).

It can be written as a sum of positive squares in 2 ways, for example, as 128640192745156 + 72479818466064 = 11341966^2 + 8513508^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201120011211194 and 201120011211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028000280261 + ... + 5028000280300.

It is an arithmetic number, because the mean of its divisors is an integer number (35196001961967).

Almost surely, 2^{201120011211220} is an apocalyptic number.

201120011211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120011211220 is an abundant number, since it is smaller than the sum of its proper divisors (221232012332384).

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

201120011211220 is a wasteful number, since it uses less digits than its factorization.

201120011211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056000560570 (or 10056000560568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201120011211220 its reverse (22112110021102), we get a palindrome (223232121232322).

The spelling of 201120011211220 in words is "two hundred one trillion, one hundred twenty billion, eleven million, two hundred eleven thousand, two hundred twenty".