21020201202 has 192 divisors, whose sum is σ = 59010989184. Its totient is φ = 4903234560.

The previous prime is 21020201183. The next prime is 21020201221. The reversal of 21020201202 is 20210202012.

It is an interprime number because it is at equal distance from previous prime (21020201183) and next prime (21020201221).

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, 1548798 + ... + 1562310.

It is an arithmetic number, because the mean of its divisors is an integer number (307348902).

Almost surely, 2^21020201202 is an apocalyptic number.

21020201202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21020201202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29505494592).

21020201202 is an abundant number, since it is smaller than the sum of its proper divisors (37990787982).

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

21020201202 is a wasteful number, since it uses less digits than its factorization.

21020201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13593 (or 13586 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21020201202 its reverse (20210202012), we get a palindrome (41230403214).

It can be divided in two parts, 21020 and 201202, that added together give a palindrome (222222).

The spelling of 21020201202 in words is "twenty-one billion, twenty million, two hundred one thousand, two hundred two".