210211222120 has 32 divisors (see below), whose sum is σ = 473285941920. Its totient is φ = 84029254720.

The previous prime is 210211222103. The next prime is 210211222183. The reversal of 210211222120 is 21222112012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210211222094 and 210211222103.

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, 1664386 + ... + 1786225.

It is an arithmetic number, because the mean of its divisors is an integer number (14790185685).

Almost surely, 2^210211222120 is an apocalyptic number.

210211222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210211222120 is an abundant number, since it is smaller than the sum of its proper divisors (263074719800).

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

210211222120 is a wasteful number, since it uses less digits than its factorization.

210211222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452145 (or 3452141 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210211222120 its reverse (21222112012), we get a palindrome (231433334132).

The spelling of 210211222120 in words is "two hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty".