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1220402002232 = 237192851402313
BaseRepresentation
bin10001110000100101101…
…000001011100100111000
311022200001220200012121202
4101300211220023210320
5124443340403032412
62332351150153332
7154112461601060
oct21604550134470
94280056605552
101220402002232
1143062a129366
121786321b2848
138b11135538a
14430d3d763a0
1521b2adb33c2
hex11c25a0b938

1220402002232 has 64 divisors (see below), whose sum is σ = 2753758867200. Its totient is φ = 495326534400.

The previous prime is 1220402002229. The next prime is 1220402002273. The reversal of 1220402002232 is 2322002040221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2832308 + ... + 3234620.

It is an arithmetic number, because the mean of its divisors is an integer number (43027482300).

Almost surely, 21220402002232 is an apocalyptic number.

It is an amenable number.

1220402002232 is an abundant number, since it is smaller than the sum of its proper divisors (1533356864968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220402002232 is a wasteful number, since it uses less digits than its factorization.

1220402002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405196 (or 405192 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1220402002232 its reverse (2322002040221), we get a palindrome (3542404042453).

The spelling of 1220402002232 in words is "one trillion, two hundred twenty billion, four hundred two million, two thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 2851 5702 11404 19957 22808 39914 54169 79828 108338 159656 216676 379183 402313 433352 758366 804626 1516732 1609252 2816191 3033464 3218504 5632382 7643947 11264764 15287894 22529528 30575788 53507629 61151576 107015258 214030516 428061032 1146994363 2293988726 4587977452 8028960541 9175954904 16057921082 21792892897 32115842164 43585785794 64231684328 87171571588 152550250279 174343143176 305100500558 610201001116 1220402002232