210221001122 has 16 divisors (see below), whose sum is σ = 344079038592. Its totient is φ = 95532490320.

The previous prime is 210221001091. The next prime is 210221001139. The reversal of 210221001122 is 221100122012.

It is a junction number, because it is equal to n+sod(n) for n = 210221001097 and 210221001106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029818 + ... + 1216949.

It is an arithmetic number, because the mean of its divisors is an integer number (21504939912).

Almost surely, 2^210221001122 is an apocalyptic number.

210221001122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210221001122 is a deficient number, since it is larger than the sum of its proper divisors (133858037470).

210221001122 is a wasteful number, since it uses less digits than its factorization.

210221001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251033.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210221001122 its reverse (221100122012), we get a palindrome (431321123134).

The spelling of 210221001122 in words is "two hundred ten billion, two hundred twenty-one million, one thousand, one hundred twenty-two".