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10001002122222 = 231666833687037
BaseRepresentation
bin1001000110001000101000…
…1011011100101111101110
31022102002100000220100002020
42101202022023130233232
52302324023020402342
633134221424011010
72051356104264366
oct221421213345756
938362300810066
1010001002122222
113206445a77301
121156317460a66
13577123959657
142680a026d9a6
15125237de30ec
hex9188a2dcbee

10001002122222 has 8 divisors (see below), whose sum is σ = 20002004244456. Its totient is φ = 3333667374072.

The previous prime is 10001002122217. The next prime is 10001002122233. The reversal of 10001002122222 is 22222120010001.

10001002122222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

10001002122222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833416843513 + ... + 833416843524.

It is an arithmetic number, because the mean of its divisors is an integer number (2500250530557).

Almost surely, 210001002122222 is an apocalyptic number.

10001002122222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10001002122222 is a wasteful number, since it uses less digits than its factorization.

10001002122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666833687042.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10001002122222 its reverse (22222120010001), we get a palindrome (32223122132223).

The spelling of 10001002122222 in words is "ten trillion, one billion, two million, one hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 1666833687037 3333667374074 5000501061111 10001002122222