201100211212120 has 64 divisors (see below), whose sum is σ = 498496833303840. Its totient is φ = 72403316352000.

The previous prime is 201100211212051. The next prime is 201100211212139. The reversal of 201100211212120 is 21212112001102.

It is a junction number, because it is equal to n+sod(n) for n = 201100211212094 and 201100211212103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262559197 + ... + 2262648076.

Almost surely, 2^{201100211212120} is an apocalyptic number.

201100211212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100211212120 is an abundant number, since it is smaller than the sum of its proper divisors (297396622091720).

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

201100211212120 is a wasteful number, since it uses less digits than its factorization.

201100211212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525207396 (or 4525207392 counting only the distinct ones).

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

Adding to 201100211212120 its reverse (21212112001102), we get a palindrome (222312323213222).

The spelling of 201100211212120 in words is "two hundred one trillion, one hundred billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty".