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31122212100002 = 219819005581579
BaseRepresentation
bin1110001001110001101000…
…11001011001011110100010
311002012020212110202010012022
413010320310121121132202
513034401242244200002
6150105202531101442
76361335300013622
oct704706431313642
9132166773663168
1031122212100002
119a09946415591
1235a7839a41882
131449a72c9c15a
14798474846882
1538e860802ba2
hex1c4e346597a2

31122212100002 has 8 divisors (see below), whose sum is σ = 49140334894800. Its totient is φ = 14742100468404.

The previous prime is 31122212099929. The next prime is 31122212100011. The reversal of 31122212100002 is 20000121222113.

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

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, 409502790752 + ... + 409502790827.

It is an arithmetic number, because the mean of its divisors is an integer number (6142541861850).

Almost surely, 231122212100002 is an apocalyptic number.

31122212100002 is a deficient number, since it is larger than the sum of its proper divisors (18018122794798).

31122212100002 is a wasteful number, since it uses less digits than its factorization.

31122212100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819005581600.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31122212100002 its reverse (20000121222113), we get a palindrome (51122333322115).

The spelling of 31122212100002 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred twelve million, one hundred thousand, two".

Divisors: 1 2 19 38 819005581579 1638011163158 15561106050001 31122212100002