211020021110 has 32 divisors (see below), whose sum is σ = 384012526752. Its totient is φ = 83482479360.

The previous prime is 211020021077. The next prime is 211020021127. The reversal of 211020021110 is 11120020112.

It is a junction number, because it is equal to n+sod(n) for n = 211020021091 and 211020021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495050 + ... + 816770.

It is an arithmetic number, because the mean of its divisors is an integer number (12000391461).

Almost surely, 2^211020021110 is an apocalyptic number.

211020021110 is a deficient number, since it is larger than the sum of its proper divisors (172992505642).

211020021110 is a wasteful number, since it uses less digits than its factorization.

211020021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322448.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211020021110 its reverse (11120020112), we get a palindrome (222140041222).

The spelling of 211020021110 in words is "two hundred eleven billion, twenty million, twenty-one thousand, one hundred ten".