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220201021210220 = 2251723925130613527
BaseRepresentation
bin110010000100010110001011…
…101001011111111001101100
31001212200000022202222002210022
4302010112023221133321230
5212330233142412211340
62100154541433501312
764244666403413621
oct6204261351377154
91055600282862708
10220201021210220
1164187801931976
1220844524571838
1395b3b3731718b
143c53b01832348
151a6ce01d6a3b5
hexc8458ba5fe6c

220201021210220 has 192 divisors, whose sum is σ = 493932201799680. Its totient is φ = 82173288960000.

The previous prime is 220201021210153. The next prime is 220201021210243. The reversal of 220201021210220 is 22012120102022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 62432950097 + ... + 62432953623.

It is an arithmetic number, because the mean of its divisors is an integer number (2572563551040).

Almost surely, 2220201021210220 is an apocalyptic number.

220201021210220 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 220201021210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246966100899840).

220201021210220 is an abundant number, since it is smaller than the sum of its proper divisors (273731180589460).

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

220201021210220 is a wasteful number, since it uses less digits than its factorization.

220201021210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104 (or 7102 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220201021210220 its reverse (22012120102022), we get a palindrome (242213141312242).

The spelling of 220201021210220 in words is "two hundred twenty trillion, two hundred one billion, twenty-one million, two hundred ten thousand, two hundred twenty".