202201101021220 has 192 divisors, whose sum is σ = 504005128704000. Its totient is φ = 66706481318400.

The previous prime is 202201101021181. The next prime is 202201101021239. The reversal of 202201101021220 is 22120101102202.

It is a happy number.

202201101021220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202201101021194 and 202201101021203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120160411 + ... + 121831549.

It is an arithmetic number, because the mean of its divisors is an integer number (2625026712000).

Almost surely, 2^{202201101021220} is an apocalyptic number.

202201101021220 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 202201101021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252002564352000).

202201101021220 is an abundant number, since it is smaller than the sum of its proper divisors (301804027682780).

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

202201101021220 is a wasteful number, since it uses less digits than its factorization.

202201101021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671498 (or 1671496 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202201101021220 its reverse (22120101102202), we get a palindrome (224321202123422).

The spelling of 202201101021220 in words is "two hundred two trillion, two hundred one billion, one hundred one million, twenty-one thousand, two hundred twenty".