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101010111212 = 221091036922343
BaseRepresentation
bin101111000010010101…
…0111111101011101100
3100122201120100022100002
41132010222333223230
53123332042024322
6114223045123432
710204060531103
oct1360452775354
9318646308302
10101010111212
113992463565a
12176b00b9578
1396a9b79c9a
144c6328103a
152962c66c92
hex1784abfaec

101010111212 has 24 divisors (see below), whose sum is σ = 178414605600. Its totient is φ = 50034640896.

The previous prime is 101010111203. The next prime is 101010111221. The reversal of 101010111212 is 212111010101.

It is an interprime number because it is at equal distance from previous prime (101010111203) and next prime (101010111221).

It is a junction number, because it is equal to n+sod(n) for n = 101010111193 and 101010111202.

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, 4509713 + ... + 4532055.

It is an arithmetic number, because the mean of its divisors is an integer number (7433941900).

Almost surely, 2101010111212 is an apocalyptic number.

It is an amenable number.

101010111212 is a deficient number, since it is larger than the sum of its proper divisors (77404494388).

101010111212 is a wasteful number, since it uses less digits than its factorization.

101010111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32825 (or 32823 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101010111212 its reverse (212111010101), we get a palindrome (313121121313).

The spelling of 101010111212 in words is "one hundred one billion, ten million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 109 218 436 10369 20738 22343 41476 44686 89372 1130221 2260442 2435387 4520884 4870774 9741548 231674567 463349134 926698268 25252527803 50505055606 101010111212