212021110103 has 16 divisors (see below), whose sum is σ = 236264200704. Its totient is φ = 188607735360.

The previous prime is 212021110079. The next prime is 212021110109. The reversal of 212021110103 is 301011120212.

It is not a de Polignac number, because 212021110103 - 2⁶ = 212021110039 is a prime.

It is a super-2 number, since 2×212021110103² (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 (212021110109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2726051 + ... + 2802747.

It is an arithmetic number, because the mean of its divisors is an integer number (14766512544).

Almost surely, 2^212021110103 is an apocalyptic number.

212021110103 is a deficient number, since it is larger than the sum of its proper divisors (24243090601).

212021110103 is a wasteful number, since it uses less digits than its factorization.

212021110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82102.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212021110103 its reverse (301011120212), we get a palindrome (513032230315).

The spelling of 212021110103 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, one hundred three".