211001120020000 has 120 divisors (see below), whose sum is σ = 541663728572736. Its totient is φ = 80730863136000.

The previous prime is 211001120019973. The next prime is 211001120020007. The reversal of 211001120020000 is 20021100112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (211001120020007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 228889044 + ... + 229809043.

Almost surely, 2^{211001120020000} is an apocalyptic number.

211001120020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211001120020000 is an abundant number, since it is smaller than the sum of its proper divisors (330662608552736).

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

211001120020000 is an equidigital number, since it uses as much as digits as its factorization.

211001120020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458698140 (or 458698117 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211001120020000 its reverse (20021100112), we get a palindrome (211021141120112).

The spelling of 211001120020000 in words is "two hundred eleven trillion, one billion, one hundred twenty million, twenty thousand".