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10201212100 = 225217195359101
BaseRepresentation
bin10011000000000101…
…00010010011000100
3222022221101021020101
421200002202103010
5131343002241400
64404131213444
7510536605102
oct114002422304
928287337211
1010201212100
114365355702
121b88447284
13c675aa3a1
146cab7cc72
153ea8a656a
hex2600a24c4

10201212100 has 288 divisors, whose sum is σ = 25817097600. Its totient is φ = 3474432000.

The previous prime is 10201212089. The next prime is 10201212137. The reversal of 10201212100 is 121210201.

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 95 ways as a sum of consecutive naturals, for example, 101002050 + ... + 101002150.

It is an arithmetic number, because the mean of its divisors is an integer number (89642700).

Almost surely, 210201212100 is an apocalyptic number.

10201212100 is a gapful number since it is divisible by the number (10) 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 10201212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12908548800).

10201212100 is an abundant number, since it is smaller than the sum of its proper divisors (15615885500).

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

10201212100 is a wasteful number, since it uses less digits than its factorization.

10201212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

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

Adding to 10201212100 its reverse (121210201), we get a palindrome (10322422301).

The spelling of 10201212100 in words is "ten billion, two hundred one million, two hundred twelve thousand, one hundred".