211220022103 has 4 divisors (see below), whose sum is σ = 211230073080. Its totient is φ = 211209971128.

The previous prime is 211220022049. The next prime is 211220022121. The reversal of 211220022103 is 301220022112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211220022103 - 2³⁷ = 73781068631 is a prime.

It is a super-2 number, since 2×211220022103² (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 (211220022163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4993900 + ... + 5036017.

It is an arithmetic number, because the mean of its divisors is an integer number (52807518270).

Almost surely, 2^211220022103 is an apocalyptic number.

211220022103 is a deficient number, since it is larger than the sum of its proper divisors (10050977).

211220022103 is a wasteful number, since it uses less digits than its factorization.

211220022103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050976.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 211220022103 its reverse (301220022112), we get a palindrome (512440044215).

Subtracting 211220022103 from its reverse (301220022112), we obtain a palindrome (90000000009).

The spelling of 211220022103 in words is "two hundred eleven billion, two hundred twenty million, twenty-two thousand, one hundred three".