210222201021210 has 64 divisors (see below), whose sum is σ = 640677184070400. Its totient is φ = 48050788804416.

The previous prime is 210222201021181. The next prime is 210222201021211. The reversal of 210222201021210 is 12120102222012.

It is a happy number.

210222201021210 is a `hidden beast` number, since 2 + 10 + 222 + 201 + 0 + 21 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (210222201021211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55614337005 + ... + 55614340784.

It is an arithmetic number, because the mean of its divisors is an integer number (10010581001100).

Almost surely, 2^{210222201021210} is an apocalyptic number.

210222201021210 is an abundant number, since it is smaller than the sum of its proper divisors (430454983049190).

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

210222201021210 is a wasteful number, since it uses less digits than its factorization.

210222201021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111228677812 (or 111228677806 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210222201021210 its reverse (12120102222012), we get a palindrome (222342303243222).

The spelling of 210222201021210 in words is "two hundred ten trillion, two hundred twenty-two billion, two hundred one million, twenty-one thousand, two hundred ten".