211022202220 has 48 divisors (see below), whose sum is σ = 450980701920. Its totient is φ = 82928761344.

The previous prime is 211022202197. The next prime is 211022202229. The reversal of 211022202220 is 22202220112.

It is a junction number, because it is equal to n+sod(n) for n = 211022202194 and 211022202203.

It is not an unprimeable number, because it can be changed into a prime (211022202229) 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, 98094 + ... + 657013.

It is an arithmetic number, because the mean of its divisors is an integer number (9395431290).

Almost surely, 2^211022202220 is an apocalyptic number.

211022202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022202220 is an abundant number, since it is smaller than the sum of its proper divisors (239958499700).

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

211022202220 is a wasteful number, since it uses less digits than its factorization.

211022202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755362 (or 755360 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 211022202220 its reverse (22202220112), we get a palindrome (233224422332).

The spelling of 211022202220 in words is "two hundred eleven billion, twenty-two million, two hundred two thousand, two hundred twenty".