212111220103 has 8 divisors (see below), whose sum is σ = 221351781600. Its totient is φ = 202872186528.

The previous prime is 212111220077. The next prime is 212111220109. The reversal of 212111220103 is 301022111212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212111220103 - 2⁹ = 212111219591 is a prime.

It is a super-2 number, since 2×212111220103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111220109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93648 + ... + 658021.

It is an arithmetic number, because the mean of its divisors is an integer number (27668972700).

Almost surely, 2^212111220103 is an apocalyptic number.

212111220103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212111220103 is a deficient number, since it is larger than the sum of its proper divisors (9240561497).

212111220103 is a wasteful number, since it uses less digits than its factorization.

212111220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763961.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212111220103 its reverse (301022111212), we get a palindrome (513133331315).

The spelling of 212111220103 in words is "two hundred twelve billion, one hundred eleven million, two hundred twenty thousand, one hundred three".