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1223221212033 = 34325138219887
BaseRepresentation
bin10001110011001101101…
…010100111001110000001
311022221100101111220102120
4101303031222213032001
5130020124112241113
62333535015434453
7154242363514452
oct21631552471601
94287311456376
101223221212033
11431846537417
1217909a385a29
138b47044a162
14432c055b129
1521c43644a23
hex11ccdaa7381

1223221212033 has 32 divisors (see below), whose sum is σ = 1676147945472. Its totient is φ = 793054920000.

The previous prime is 1223221211981. The next prime is 1223221212089. The reversal of 1223221212033 is 3302121223221.

It is not a de Polignac number, because 1223221212033 - 26 = 1223221211969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1223221211994 and 1223221212012.

It is not an unprimeable number, because it can be changed into a prime (1223221212833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123715216 + ... + 123725102.

It is an arithmetic number, because the mean of its divisors is an integer number (52379623296).

Almost surely, 21223221212033 is an apocalyptic number.

It is an amenable number.

1223221212033 is a deficient number, since it is larger than the sum of its proper divisors (452926733439).

1223221212033 is a wasteful number, since it uses less digits than its factorization.

1223221212033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14005.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1223221212033 its reverse (3302121223221), we get a palindrome (4525342435254).

The spelling of 1223221212033 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred twelve thousand, thirty-three".

Divisors: 1 3 43 129 251 753 3821 9887 10793 11463 29661 32379 164303 425141 492909 959071 1275423 2481637 2877213 7444911 37778227 41240053 106710391 113334681 123720159 320131173 1624463761 4873391283 9482334977 28447004931 407740404011 1223221212033