210211221212202 has 192 divisors, whose sum is σ = 520195797319680. Its totient is φ = 56339008742016.

The previous prime is 210211221212107. The next prime is 210211221212231. The reversal of 210211221212202 is 202212122112012.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 780788503 + ... + 781057685.

It is an arithmetic number, because the mean of its divisors is an integer number (2709353111040).

Almost surely, 2^{210211221212202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210211221212202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260097898659840).

210211221212202 is an abundant number, since it is smaller than the sum of its proper divisors (309984576107478).

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

210211221212202 is a wasteful number, since it uses less digits than its factorization.

210211221212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271457 (or 271450 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 210211221212202 its reverse (202212122112012), we get a palindrome (412423343324214).

The spelling of 210211221212202 in words is "two hundred ten trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".