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211010011001212 = 22433978291552913
BaseRepresentation
bin101111111110100110011000…
…101111111111000101111100
31000200010100201110202021211111
4233332212120233333011330
5210124142000304014322
62024440354423331404
762305653531562453
oct5776463057770574
91020110643667744
10211010011001212
1161263930210685
121b7bb1a18b0b64
13909820a752897
143a16d20983b9a
15195dcc457b177
hexbfe998bff17c

211010011001212 has 24 divisors (see below), whose sum is σ = 369400038915600. Its totient is φ = 105467148999936.

The previous prime is 211010011001203. The next prime is 211010011001239. The reversal of 211010011001212 is 212100110010112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211010011001192 and 211010011001201.

It is a congruent number.

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, 135103668 + ... + 136656580.

It is an arithmetic number, because the mean of its divisors is an integer number (15391668288150).

Almost surely, 2211010011001212 is an apocalyptic number.

It is an amenable number.

211010011001212 is a deficient number, since it is larger than the sum of its proper divisors (158390027914388).

211010011001212 is a wasteful number, since it uses less digits than its factorization.

211010011001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565085 (or 1565083 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211010011001212 its reverse (212100110010112), we get a palindrome (423110121011324).

The spelling of 211010011001212 in words is "two hundred eleven trillion, ten billion, eleven million, one thousand, two hundred twelve".

Divisors: 1 2 4 4339 7829 8678 15658 17356 31316 1552913 3105826 6211652 33970031 67940062 135880124 6738089507 12157755877 13476179014 24315511754 26952358028 48631023508 52752502750303 105505005500606 211010011001212