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2011222001212 = 228291333145497
BaseRepresentation
bin11101010001000110001…
…011000100011000111100
321010021022112000120121121
4131101012023010120330
5230422440313014322
64135535335240324
7265206645640534
oct35210613043074
97107275016547
102011222001212
11705a55429456
122859562190a4
1311787147a288
146d4b502c4c4
15374b32beec7
hex1d4462c463c

2011222001212 has 24 divisors (see below), whose sum is σ = 3524225942160. Its totient is φ = 1004300542080.

The previous prime is 2011222001183. The next prime is 2011222001293. The reversal of 2011222001212 is 2121002221102.

It is a happy number.

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, 44182848 + ... + 44228344.

It is an arithmetic number, because the mean of its divisors is an integer number (146842747590).

Almost surely, 22011222001212 is an apocalyptic number.

It is an amenable number.

2011222001212 is a deficient number, since it is larger than the sum of its proper divisors (1513003940948).

2011222001212 is a wasteful number, since it uses less digits than its factorization.

2011222001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59661 (or 59659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2011222001212 its reverse (2121002221102), we get a palindrome (4132224222314).

The spelling of 2011222001212 in words is "two trillion, eleven billion, two hundred twenty-two million, one thousand, two hundred twelve".

Divisors: 1 2 4 829 1658 3316 13331 26662 45497 53324 90994 181988 11051399 22102798 37717013 44205596 75434026 150868052 606520507 1213041014 2426082028 502805500303 1005611000606 2011222001212