Search a number
-
+
1220220221022 = 2321120832958583
BaseRepresentation
bin10001110000011010110…
…010101111011001011110
311022122121020121202200100
4101300122302233121132
5124443002334033042
62332321134041530
7154105123513515
oct21603262573136
94278536552610
101220220221022
1143054655a460
121785a13492a6
138b0b27a982a
14430b7b7767c
1521b19e5724c
hex11c1acaf65e

1220220221022 has 48 divisors (see below), whose sum is σ = 2885542478208. Its totient is φ = 369586063440.

The previous prime is 1220220220991. The next prime is 1220220221029. The reversal of 1220220221022 is 2201220220221.

1220220221022 is a `hidden beast` number, since 1 + 220 + 220 + 221 + 0 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220220220986 and 1220220221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220221029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1066858 + ... + 1891725.

It is an arithmetic number, because the mean of its divisors is an integer number (60115468296).

Almost surely, 21220220221022 is an apocalyptic number.

1220220221022 is an abundant number, since it is smaller than the sum of its proper divisors (1665322257186).

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

1220220221022 is a wasteful number, since it uses less digits than its factorization.

1220220221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960685 (or 2960682 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1220220221022 its reverse (2201220220221), we get a palindrome (3421440441243).

The spelling of 1220220221022 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 2083 4166 6249 12498 18747 22913 37494 45826 68739 137478 206217 412434 2958583 5917166 8875749 17751498 26627247 32544413 53254494 65088826 97633239 195266478 292899717 585799434 6162728389 12325456778 18488185167 36976370334 55464555501 67790012279 110929111002 135580024558 203370036837 406740073674 610110110511 1220220221022