202001121110220 has 192 divisors, whose sum is σ = 584522552033280. Its totient is φ = 52094543155200.

The previous prime is 202001121110189. The next prime is 202001121110221. The reversal of 202001121110220 is 22011121100202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202001121110220.

It is not an unprimeable number, because it can be changed into a prime (202001121110221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1029684501 + ... + 1029880659.

It is an arithmetic number, because the mean of its divisors is an integer number (3044388291840).

Almost surely, 2^{202001121110220} is an apocalyptic number.

202001121110220 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 202001121110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292261276016640).

202001121110220 is an abundant number, since it is smaller than the sum of its proper divisors (382521430923060).

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

202001121110220 is a wasteful number, since it uses less digits than its factorization.

202001121110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200856 (or 200854 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202001121110220 its reverse (22011121100202), we get a palindrome (224012242210422).

The spelling of 202001121110220 in words is "two hundred two trillion, one billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".