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1220433035312 = 241918122180013
BaseRepresentation
bin10001110000100111011…
…110100100000000110000
311022200011002001212000002
4101300213132210000300
5124443421324112222
62332354215245132
7154113316431401
oct21604736440060
94280132055002
101220433035312
114306456a4a37
121786406797a8
138b1178cc64a
14430d81339a8
1521b2d993392
hex11c277a4030

1220433035312 has 40 divisors (see below), whose sum is σ = 2502792779760. Its totient is φ = 574905911040.

The previous prime is 1220433035303. The next prime is 1220433035317. The reversal of 1220433035312 is 2135303340221.

It is a happy number.

It is a super-2 number, since 2×12204330353122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220433035317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11034983 + ... + 11145030.

It is an arithmetic number, because the mean of its divisors is an integer number (62569819494).

Almost surely, 21220433035312 is an apocalyptic number.

It is an amenable number.

1220433035312 is an abundant number, since it is smaller than the sum of its proper divisors (1282359744448).

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

1220433035312 is a wasteful number, since it uses less digits than its factorization.

1220433035312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22180221 (or 22180215 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 1220433035312 its reverse (2135303340221), we get a palindrome (3355736375533).

The spelling of 1220433035312 in words is "one trillion, two hundred twenty billion, four hundred thirty-three million, thirty-five thousand, three hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 152 181 304 362 724 1448 2896 3439 6878 13756 27512 55024 22180013 44360026 88720052 177440104 354880208 421420247 842840494 1685680988 3371361976 4014582353 6742723952 8029164706 16058329412 32116658824 64233317648 76277064707 152554129414 305108258828 610216517656 1220433035312