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210022210020220 = 2251319443636715073
BaseRepresentation
bin101111110000001110011011…
…001110010010001101111100
31000112121221000220221020110021
4233300032123032102031330
5210012000441231121340
62022402512112221524
762144414103020503
oct5760163316221574
91015557026836407
10210022210020220
1160a12a1231a284
121b67b86523a8a4
1390260179214b0
1439c11b476383a
15194325dc98e4a
hexbf039b39237c

210022210020220 has 192 divisors, whose sum is σ = 501212458414080. Its totient is φ = 73283048497152.

The previous prime is 210022210020211. The next prime is 210022210020223. The reversal of 210022210020220 is 22020012220012.

It is a junction number, because it is equal to n+sod(n) for n = 210022210020194 and 210022210020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022210020223) 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, 13933662604 + ... + 13933677676.

It is an arithmetic number, because the mean of its divisors is an integer number (2610481554240).

Almost surely, 2210022210020220 is an apocalyptic number.

210022210020220 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 210022210020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250606229207040).

210022210020220 is an abundant number, since it is smaller than the sum of its proper divisors (291190248393860).

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

210022210020220 is a wasteful number, since it uses less digits than its factorization.

210022210020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21924 (or 21922 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210022210020220 its reverse (22020012220012), we get a palindrome (232042222240232).

The spelling of 210022210020220 in words is "two hundred ten trillion, twenty-two billion, two hundred ten million, twenty thousand, two hundred twenty".