20211100202202 has 96 divisors (see below), whose sum is σ = 50674151852352. Its totient is φ = 5326678861056.

The previous prime is 20211100202089. The next prime is 20211100202269. The reversal of 20211100202202 is 20220200111202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3631813 + ... + 7322039.

It is an arithmetic number, because the mean of its divisors is an integer number (527855748462).

Almost surely, 2^{20211100202202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20211100202202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25337075926176).

20211100202202 is an abundant number, since it is smaller than the sum of its proper divisors (30463051650150).

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

20211100202202 is a wasteful number, since it uses less digits than its factorization.

20211100202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691692 (or 3691685 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20211100202202 its reverse (20220200111202), we get a palindrome (40431300313404).

The spelling of 20211100202202 in words is "twenty trillion, two hundred eleven billion, one hundred million, two hundred two thousand, two hundred two".