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103102213221220 = 2255155110661061
BaseRepresentation
bin10111011100010101011010…
…110010110110101101100100
3111112001110211111210102201211
4113130111122302312231210
5102003211313041034340
61003140300342201204
730500613646351003
oct2734253262665544
9445043744712654
10103102213221220
112a9404485488a4
12b691a96723204
13456b65cb65a25
141b66260a88c3a
15bdbdd26cc5ea
hex5dc55acb6b64

103102213221220 has 12 divisors (see below), whose sum is σ = 216514647764604. Its totient is φ = 41240885288480.

The previous prime is 103102213221199. The next prime is 103102213221239. The reversal of 103102213221220 is 22122312201301.

It can be written as a sum of positive squares in 2 ways, for example, as 37117654565476 + 65984558655744 = 6092426^2 + 8123088^2 .

It is a super-2 number, since 2×1031022132212202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103102213221191 and 103102213221200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577555330511 + ... + 2577555330550.

It is an arithmetic number, because the mean of its divisors is an integer number (18042887313717).

Almost surely, 2103102213221220 is an apocalyptic number.

103102213221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103102213221220 is an abundant number, since it is smaller than the sum of its proper divisors (113412434543384).

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

103102213221220 is a wasteful number, since it uses less digits than its factorization.

103102213221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155110661070 (or 5155110661068 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 103102213221220 its reverse (22122312201301), we get a palindrome (125224525422521).

The spelling of 103102213221220 in words is "one hundred three trillion, one hundred two billion, two hundred thirteen million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5155110661061 10310221322122 20620442644244 25775553305305 51551106610610 103102213221220