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2220001210020 = 223511231071499173
BaseRepresentation
bin100000010011100010011…
…000100010111010100100
321212020012200221021112210
4200103202120202322210
5242333030302210040
64415504322243420
7316250461635516
oct40234230427244
97766180837483
102220001210020
11786551898120
122ba301ab6570
13131464592b59
147963d08dbb6
153cb3235b480
hex204e2622ea4

2220001210020 has 384 divisors, whose sum is σ = 7190772019200. Its totient is φ = 506493982720.

The previous prime is 2220001210019. The next prime is 2220001210033. The reversal of 2220001210020 is 200121000222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2220001209978 and 2220001210005.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 242010154 + ... + 242019326.

It is an arithmetic number, because the mean of its divisors is an integer number (18725968800).

Almost surely, 22220001210020 is an apocalyptic number.

2220001210020 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 2220001210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3595386009600).

2220001210020 is an abundant number, since it is smaller than the sum of its proper divisors (4970770809180).

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

2220001210020 is a wasteful number, since it uses less digits than its factorization.

2220001210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475 (or 9473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2220001210020 its reverse (200121000222), we get a palindrome (2420122210242).

The spelling of 2220001210020 in words is "two trillion, two hundred twenty billion, one million, two hundred ten thousand, twenty".