210021111322 has 16 divisors (see below), whose sum is σ = 343830020544. Its totient is φ = 95419944000.

The previous prime is 210021111317. The next prime is 210021111343. The reversal of 210021111322 is 223111120012.

It is a junction number, because it is equal to n+sod(n) for n = 210021111296 and 210021111305.

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, 2161254 + ... + 2256337.

It is an arithmetic number, because the mean of its divisors is an integer number (21489376284).

Almost surely, 2^210021111322 is an apocalyptic number.

210021111322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210021111322 is a deficient number, since it is larger than the sum of its proper divisors (133808909222).

210021111322 is a wasteful number, since it uses less digits than its factorization.

210021111322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419765.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210021111322 its reverse (223111120012), we get a palindrome (433132231334).

The spelling of 210021111322 in words is "two hundred ten billion, twenty-one million, one hundred eleven thousand, three hundred twenty-two".