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200221220120 = 235234773137463
BaseRepresentation
bin1011101001111000011…
…1010101110100011000
3201010210202112211110012
42322132013111310120
511240023113020440
6231551431341052
720315445201425
oct2723607256430
9633722484405
10200221220120
1177a05728149
1232979821788
1315b5b0c605c
149995628d4c
15531cac0e65
hex2e9e1d5d18

200221220120 has 256 divisors, whose sum is σ = 491273994240. Its totient is φ = 73251053568.

The previous prime is 200221220119. The next prime is 200221220137. The reversal of 200221220120 is 21022122002.

It is a junction number, because it is equal to n+sod(n) for n = 200221220095 and 200221220104.

It is a congruent number.

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, 432443009 + ... + 432443471.

It is an arithmetic number, because the mean of its divisors is an integer number (1919039040).

Almost surely, 2200221220120 is an apocalyptic number.

200221220120 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 200221220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245636997120).

200221220120 is an abundant number, since it is smaller than the sum of its proper divisors (291052774120).

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

200221220120 is a wasteful number, since it uses less digits than its factorization.

200221220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200221220120 its reverse (21022122002), we get a palindrome (221243342122).

The spelling of 200221220120 in words is "two hundred billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty".