212110221111000 has 64 divisors (see below), whose sum is σ = 661783889875680. Its totient is φ = 56562725628800.

The previous prime is 212110221110987. The next prime is 212110221111001. The reversal of 212110221111000 is 111122011212.

It is a happy number.

It is a super-4 number, since 4×212110221111000⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110221111001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35351700519 + ... + 35351706518.

Almost surely, 2^{212110221111000} is an apocalyptic number.

212110221111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110221111000 is an abundant number, since it is smaller than the sum of its proper divisors (449673668764680).

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

212110221111000 is a wasteful number, since it uses less digits than its factorization.

212110221111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703407061 (or 70703407047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212110221111000 its reverse (111122011212), we get a palindrome (212221343122212).

The spelling of 212110221111000 in words is "two hundred twelve trillion, one hundred ten billion, two hundred twenty-one million, one hundred eleven thousand".