211121021220110 has 8 divisors (see below), whose sum is σ = 380017838196216. Its totient is φ = 84448408488040.

The previous prime is 211121021220103. The next prime is 211121021220139. The reversal of 211121021220110 is 11022120121112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10556051060996 + ... + 10556051061015.

It is an arithmetic number, because the mean of its divisors is an integer number (47502229774527).

Almost surely, 2^{211121021220110} is an apocalyptic number.

211121021220110 is a deficient number, since it is larger than the sum of its proper divisors (168896816976106).

211121021220110 is a wasteful number, since it uses less digits than its factorization.

211121021220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112102122018.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211121021220110 its reverse (11022120121112), we get a palindrome (222143141341222).

The spelling of 211121021220110 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty thousand, one hundred ten".