211121021022 has 8 divisors (see below), whose sum is σ = 422242042056. Its totient is φ = 70373673672.

The previous prime is 211121021011. The next prime is 211121021029. The reversal of 211121021022 is 220120121112.

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

211121021022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 211121020992 and 211121021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121021029) 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, 17593418413 + ... + 17593418424.

It is an arithmetic number, because the mean of its divisors is an integer number (52780255257).

Almost surely, 2^211121021022 is an apocalyptic number.

211121021022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211121021022 is a wasteful number, since it uses less digits than its factorization.

211121021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35186836842.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211121021022 its reverse (220120121112), we get a palindrome (431241142134).

The spelling of 211121021022 in words is "two hundred eleven billion, one hundred twenty-one million, twenty-one thousand, twenty-two".