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1001220102010 = 25434512304251
BaseRepresentation
bin11101001000111010101…
…11100101011101111010
310112201022202021000210101
432210131113211131322
5112400444321231020
62043542033310014
7132223111306522
oct16443527453572
93481282230711
101001220102010
11356684711667
1214206270530a
1373550caa9ab
14366604ca682
151b09d92300a
hexe91d5e577a

1001220102010 has 16 divisors (see below), whose sum is σ = 1802238442272. Its totient is φ = 400478650000.

The previous prime is 1001220101957. The next prime is 1001220102031. The reversal of 1001220102010 is 102010221001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717616 + ... + 1586635.

It is an arithmetic number, because the mean of its divisors is an integer number (112639902642).

Almost surely, 21001220102010 is an apocalyptic number.

1001220102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001220102010 is a deficient number, since it is larger than the sum of its proper divisors (801018340262).

1001220102010 is a wasteful number, since it uses less digits than its factorization.

1001220102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347709.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001220102010 its reverse (102010221001), we get a palindrome (1103230323011).

The spelling of 1001220102010 in words is "one trillion, one billion, two hundred twenty million, one hundred two thousand, ten".

Divisors: 1 2 5 10 43451 86902 217255 434510 2304251 4608502 11521255 23042510 100122010201 200244020402 500610051005 1001220102010