211121000022 has 48 divisors (see below), whose sum is σ = 443158769088. Its totient is φ = 67045506000.

The previous prime is 211121000021. The next prime is 211121000029. The reversal of 211121000022 is 220000121112.

It is a junction number, because it is equal to n+sod(n) for n = 211120999971 and 211121000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121000021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 664173 + ... + 929175.

It is an arithmetic number, because the mean of its divisors is an integer number (9232474356).

Almost surely, 2^211121000022 is an apocalyptic number.

211121000022 is an abundant number, since it is smaller than the sum of its proper divisors (232037769066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211121000022 is a wasteful number, since it uses less digits than its factorization.

211121000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265305 (or 265282 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211121000022 its reverse (220000121112), we get a palindrome (431121121134).

The spelling of 211121000022 in words is "two hundred eleven billion, one hundred twenty-one million, twenty-two", and thus it is an aban number.