202120011210200 has 96 divisors (see below), whose sum is σ = 472756556376000. Its totient is φ = 80361934262400.

The previous prime is 202120011210179. The next prime is 202120011210203. The reversal of 202120011210200 is 2012110021202.

It is a super-2 number, since 2×202120011210200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120011210203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82529315 + ... + 84943085.

It is an arithmetic number, because the mean of its divisors is an integer number (4924547462250).

Almost surely, 2^{202120011210200} is an apocalyptic number.

202120011210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202120011210200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236378278188000).

202120011210200 is an abundant number, since it is smaller than the sum of its proper divisors (270636545165800).

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

202120011210200 is a wasteful number, since it uses less digits than its factorization.

202120011210200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416305 (or 2416296 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202120011210200 its reverse (2012110021202), we get a palindrome (204132121231402).

The spelling of 202120011210200 in words is "two hundred two trillion, one hundred twenty billion, eleven million, two hundred ten thousand, two hundred".