211200111212020 has 96 divisors (see below), whose sum is σ = 513417882781440. Its totient is φ = 71481776486400.

The previous prime is 211200111211997. The next prime is 211200111212147. The reversal of 211200111212020 is 20212111002112.

It is a super-2 number, since 2×211200111212020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211200111211985 and 211200111212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17395590 + ... + 26925949.

It is an arithmetic number, because the mean of its divisors is an integer number (5348102945640).

Almost surely, 2^{211200111212020} is an apocalyptic number.

211200111212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211200111212020 is an abundant number, since it is smaller than the sum of its proper divisors (302217771569420).

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

211200111212020 is a wasteful number, since it uses less digits than its factorization.

211200111212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44321993 (or 44321991 counting only the distinct ones).

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

Adding to 211200111212020 its reverse (20212111002112), we get a palindrome (231412222214132).

The spelling of 211200111212020 in words is "two hundred eleven trillion, two hundred billion, one hundred eleven million, two hundred twelve thousand, twenty".