211020002202108 has 144 divisors (see below), whose sum is σ = 542058122340000. Its totient is φ = 63845450465280.

The previous prime is 211020002202047. The next prime is 211020002202109. The reversal of 211020002202108 is 801202200020112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020002202109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2542092508 + ... + 2542175516.

It is an arithmetic number, because the mean of its divisors is an integer number (3764292516250).

Almost surely, 2^{211020002202108} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211020002202108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271029061170000).

211020002202108 is an abundant number, since it is smaller than the sum of its proper divisors (331038120137892).

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

211020002202108 is a wasteful number, since it uses less digits than its factorization.

211020002202108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85756 (or 85743 counting only the distinct ones).

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

The spelling of 211020002202108 in words is "two hundred eleven trillion, twenty billion, two million, two hundred two thousand, one hundred eight".